QUDT¶

metamodel version: 1.7.0

version: 0.0.2

This is a LinkML representation of the QUDT (Quantities, Units, Dimensions and Types) ontology. QUDT provides a comprehensive vocabulary for describing physical quantities, units of measure, and their relationships in a machine-readable format.

Class Diagram¶

class_diagram

ERD Diagram¶

erd_diagram

Base Classes¶

Foundational classes in the hierarchy (root classes and direct children of Thing):

Class	Description
Aspect
Class
Concept
Resource
StringEncodingType
Thing	The root class for all QUDT concepts

Standalone Classes¶

These classes are completely isolated with no relationships and are not used as base classes:

Class	Description
AspectClass
CatalogEntry
Comment
DateTimeStringEncodingType
LatexString
List
NISTSP811Comment
Ontology
SignednessType
Statement
SymmetricRelation
Verifiable
GDay
GMonth
GMonthDay
GYear
GYearMonth
ValueUnion

Classes¶

AbstractQuantityKind¶

YAML Definition¶

Click to expand

AbstractQuantityKind:
  is_a: Concept
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - AbstractQuantityKind_broader
  - AbstractQuantityKind_altSymbol
  - AbstractQuantityKind_latexSymbol
  - AbstractQuantityKind_symbol
  slot_usage:
    broader:
      range: QuantityKind
    altSymbol:
      required: false
    latexSymbol:
      required: false
    symbol:
      multivalued: false

class_abstractquantitykind_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
deprecated	_0..1	None
guidance	_0..*	string
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.
altSymbol	_0..*	None	An alternative symbol
latexSymbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
symbol	_0..1	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.

AngleUnit¶

YAML Definition¶

Click to expand

AngleUnit:
  is_a: DimensionlessUnit
  slots:
  - Verifiable_isoNormativeReference
  - Verifiable_normativeReference
  - Verifiable_wikidataMatch
  - Verifiable_dbpediaMatch
  - hasReciprocalUnit
  - isUnitOfSystem
  - omUnit
  - unitFor
  - Unit_applicableSystem
  - Unit_definedUnitOfSystem
  - Unit_derivedCoherentUnitOfSystem
  - Unit_derivedUnitOfSystem
  - Unit_exactMatch
  - Unit_hasDimensionVector
  - Unit_hasFactorUnit
  - Unit_hasQuantityKind
  - Unit_iec61360Code
  - Unit_prefix
  - Unit_qkdvDenominator
  - Unit_qkdvNumerator
  - Unit_scalingOf
  - Unit_ucumCode
  - Unit_udunitsCode
  - Unit_uneceCommonCode
  - Unit_altSymbol
  - Unit_latexDefinition
  - Unit_latexSymbol
  - Unit_siUnitsExpression
  - Unit_symbol
  - Unit_conversionMultiplier
  - Unit_conversionMultiplierSN
  - Unit_conversionOffset
  - Unit_conversionOffsetSN
  - Unit_factorUnitScalar
  - Unit_mathMLdefinition
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription

class_angleunit_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
altSymbol	_0..*	None	An alternative symbol
applicableSystem	_0..*	SystemOfUnits	This property relates a unit of measure with a unit system that may or may not define the unit, but within which the unit is compatible.
conversionMultiplier	_0..1	None
conversionMultiplierSN	_0..1	None
conversionOffset	_0..1	None
conversionOffsetSN	_0..1	None
dbpediaMatch	_0..*	uri
definedUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure with the unit system that defines the unit.
derivedCoherentUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure to the unit system in which the unit is derived from the system's base units with a proportionality constant of one.
derivedUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure to the system of units in which it is defined as a derived unit. That is, the derived unit is defined as a product of the base units for the system raised to some rational power.
exactMatch	_0..*	Unit
factorUnitScalar	_0..1	None	For a derived unit that is not exactly the product of its factor units, this property defines the scalar with which that product has to be multiplied with.
hasDimensionVector	_0..1	QuantityKindDimensionVector
hasFactorUnit	_0..*	Class	This property relates a derived unit to one of its constituent factor units
hasQuantityKind	_0..*	QuantityKind
hasReciprocalUnit	_0..*	Unit
iec61360Code	_0..*	string
isUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure with a system of units that either a) defines the unit or b) allows the unit to be used within the system.
isoNormativeReference	_0..*	None	Provides a way to reference the ISO unit definition.
latexDefinition	_0..*	None
latexSymbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
mathMLdefinition	_0..1	None
normativeReference	_0..*	None	Provides a way to reference information that is an authoritative source providing a standard definition
omUnit	_0..*	None
prefix	_0..*	Prefix
qkdvDenominator	_0..1	QuantityKindDimensionVector
qkdvNumerator	_0..1	QuantityKindDimensionVector
scalingOf	_0..*	Unit	This property relates a unit to another unit it is scaled from
siUnitsExpression	_0..*	None
symbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
ucumCode	_0..*	UCUMcs	ucumCode associates a QUDT unit with its UCUM code (case-sensitive). In SHACL the values are derived from specific ucum properties using 'sh:values'.
udunitsCode	_0..*	string	The UDUNITS package supports units of physical quantities. Its C library provides for arithmetic manipulation of units and for conversion of numeric values between compatible units. The package contains an extensive unit database, which is in XML format and user-extendable. The package also contains a command-line utility for investigating units and converting values.
uneceCommonCode	_0..*	string	The UN/CEFACT Recommendation 20 provides three character alphabetic and alphanumeric codes for representing units of measurement for length, area, volume/capacity, mass (weight), time, and other quantities used in international trade. The codes are intended for use in manual and/or automated systems for the exchange of information between participants in international trade.
unitFor	_0..*	None
wikidataMatch	_0..*	uri
guidance	_0..*	string

Parents¶

DimensionlessUnit

Aspect¶

An aspect is an abstract type class that defines properties that can be reused.

YAML Definition¶

Click to expand

Aspect:
  is_a: Thing

Local class diagram¶

class_aspect_local

This class has no attributes

Parents¶

Thing - The root class for all QUDT concepts

Children¶

DataEncoding
Quantifiable
Verifiable

AspectClass¶

YAML Definition¶

Click to expand

AspectClass:
  is_a: Class

Local class diagram¶

class_aspectclass_local

This class has no attributes

Parents¶

Class

BaseDimensionMagnitude¶

A Dimension expresses a magnitude for a base quantiy kind such as mass, length and time.

DEPRECATED - each exponent is expressed as a property. Keep until a validaiton of this has been done.

YAML Definition¶

Click to expand

BaseDimensionMagnitude:
  is_a: Concept
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - BaseDimensionMagnitude_hasBaseQuantityKind
  - BaseDimensionMagnitude_vectorMagnitude
  slot_usage:
    hasBaseQuantityKind:
      range: QuantityKind
      required: true
      multivalued: false
    vectorMagnitude:
      range: float
      required: true
      multivalued: false

class_basedimensionmagnitude_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
deprecated	_0..1	None
guidance	_0..*	string
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.
hasBaseQuantityKind	_1..1	QuantityKind
vectorMagnitude	_1..1	float

Parents¶

Concept

BinaryPrefix¶

A Binary Prefix is a prefix for multiples of units in data processing, data transmission, and digital information, notably the bit and the byte, to indicate multiplication by a power of 2.

YAML Definition¶

Click to expand

BinaryPrefix:
  is_a: Prefix
  slots:
  - Verifiable_isoNormativeReference
  - Verifiable_normativeReference
  - Verifiable_wikidataMatch
  - Verifiable_dbpediaMatch
  - Prefix_exactMatch
  - Prefix_ucumCode
  - Prefix_altSymbol
  - Prefix_latexSymbol
  - Prefix_symbol
  - Prefix_prefixMultiplier
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription

class_binaryprefix_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
altSymbol	_0..*	None	An alternative symbol
dbpediaMatch	_0..*	uri
exactMatch	_0..*	Prefix
isoNormativeReference	_0..*	None	Provides a way to reference the ISO unit definition.
latexSymbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
normativeReference	_0..*	None	Provides a way to reference information that is an authoritative source providing a standard definition
prefixMultiplier	_0..1	None
symbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
ucumCode	_0..*	UCUMcs-term	ucumCode associates a QUDT unit with its UCUM code (case-sensitive). In SHACL the values are derived from specific ucum properties using 'sh:values'.
wikidataMatch	_0..*	uri
guidance	_0..*	string

Parents¶

Prefix

BitEncodingType¶

YAML Definition¶

Click to expand

BitEncodingType:
  is_a: Encoding
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - Encoding_bits
  - Encoding_bytes

class_bitencodingtype_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
bits	_0..1	None
bytes	_0..1	None
deprecated	_0..1	None
guidance	_0..*	string
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.

Parents¶

Encoding

BooleanEncodingType¶

YAML Definition¶

Click to expand

BooleanEncodingType:
  is_a: Encoding
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - Encoding_bits
  - Encoding_bytes

class_booleanencodingtype_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
bits	_0..1	None
bytes	_0..1	None
deprecated	_0..1	None
guidance	_0..*	string
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.

Parents¶

Encoding

ByteEncodingType¶

YAML Definition¶

Click to expand

ByteEncodingType:
  is_a: Encoding
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - Encoding_bits
  - Encoding_bytes

class_byteencodingtype_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
bits	_0..1	None
bytes	_0..1	None
deprecated	_0..1	None
guidance	_0..*	string
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.

Parents¶

Encoding

CardinalityType¶

YAML Definition¶

Click to expand

CardinalityType:
  is_a: EnumeratedValue
  slots:
  - Verifiable_isoNormativeReference
  - Verifiable_normativeReference
  - Verifiable_wikidataMatch
  - Verifiable_dbpediaMatch
  - EnumeratedValue_altSymbol
  - EnumeratedValue_description
  - EnumeratedValue_abbreviation
  - EnumeratedValue_symbol
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_deprecated
  - Concept_plainTextDescription
  - CardinalityType_literal
  slot_usage:
    literal:
      multivalued: false

class_cardinalitytype_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
altSymbol	_0..*	None	An alternative symbol
dbpediaMatch	_0..*	uri
isoNormativeReference	_0..*	None	Provides a way to reference the ISO unit definition.
normativeReference	_0..*	None	Provides a way to reference information that is an authoritative source providing a standard definition
symbol	_0..1	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
wikidataMatch	_0..*	uri
literal	_0..1	None
guidance	_0..*	string

Parents¶

EnumeratedValue

Referenced by:¶

Datatype : cardinality _0..*

CatalogEntry¶

YAML Definition¶

Click to expand

CatalogEntry: {}

This class has no attributes

CharEncodingType¶

YAML Definition¶

Click to expand

CharEncodingType:
  is_a: Encoding
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - Encoding_bits
  - Encoding_bytes

class_charencodingtype_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
bits	_0..1	None
bytes	_0..1	None
deprecated	_0..1	None
guidance	_0..*	string
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.

Parents¶

Encoding

Citation¶

Provides a simple way of making citations.

YAML Definition¶

Click to expand

Citation:
  is_a: Concept
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - Citation_description
  - Citation_url
  slot_usage:
    description:
      required: true
      multivalued: false
    url:
      multivalued: false

class_citation_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_1..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
deprecated	_0..1	None
guidance	_0..*	string
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.
url	_0..1	None

Parents¶

Concept

Class¶

YAML Definition¶

Click to expand

Class: {}

class_class_erd

This class has no attributes

Children¶

AspectClass

Referenced by:¶

Unit : hasFactorUnit _0..*

Comment¶

YAML Definition¶

Click to expand

Comment:
  is_a: Verifiable
  slots:
  - Verifiable_isoNormativeReference
  - Verifiable_normativeReference
  - Verifiable_wikidataMatch
  - Verifiable_dbpediaMatch
  - Comment_rationale
  - Comment_description
  slot_usage:
    rationale:
      required: false
    description:
      multivalued: false

Local class diagram¶

class_comment_local

Attributes¶

Name	Cardinality:	Type	Description
description	_0..1	None
dbpediaMatch	_0..*	uri
isoNormativeReference	_0..*	None	Provides a way to reference the ISO unit definition.
normativeReference	_0..*	None	Provides a way to reference information that is an authoritative source providing a standard definition
wikidataMatch	_0..*	uri
rationale	_0..*	string

Parents¶

Verifiable

Children¶

NISTSP811Comment

Concept¶

The root class for all QUDT concepts.

YAML Definition¶

Click to expand

Concept:
  is_a: Thing
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  slot_usage:
    hasRule:
      range: Rule
    isReplacedBy:
      multivalued: false
    description:
      multivalued: false
    abbreviation:
      multivalued: false
    deprecated:
      multivalued: false
    id:
      multivalued: false
    plainTextDescription:
      multivalued: false

class_concept_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
deprecated	_0..1	None
guidance	_0..*	string
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.

Parents¶

Thing - The root class for all QUDT concepts

Children¶

AbstractQuantityKind
BaseDimensionMagnitude
Citation
DataItem
Datatype
Discipline
Encoding
EnumeratedQuantity
Enumeration
Figure
MathsFunctionType
Organization
QuantityKindDimensionVector
Scale
Symbol
SystemOfQuantityKinds

Used as mixin by¶

EnumeratedValue
NumericUnion
Prefix
Quantity
QuantityValue
Rule
SystemOfUnits
Unit

Referenced by:¶

ConstantValue¶

Used to specify the values of a constant.

YAML Definition¶

Click to expand

ConstantValue:
  is_a: QuantityValue
  slots:
  - Quantifiable_dataEncoding
  - Quantifiable_datatype
  - Quantifiable_relativeStandardUncertainty
  - Quantifiable_standardUncertainty
  - Quantifiable_standardUncertaintySN
  - Quantifiable_value
  - Quantifiable_valueSN
  - QuantityValue_hasUnit
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - ConstantValue_exactConstant
  slot_usage:
    exactConstant:
      required: false

class_constantvalue_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
dataEncoding	_0..1	DataEncoding
datatype	_0..1	Datatype
hasUnit	_0..1	Unit	This property relates a factor unit to its unit or a system of units with a unit of measure that is either a) defined by the system, or b) accepted for use by the system and is convertible to a unit of equivalent dimension that is defined by the system. Systems of units may distinguish between base and derived units. Base units are the units which measure the base quantities for the corresponding system of quantities. The base units are used to define units for all other quantities as products of powers of the base units. Such units are called derived units for the system.
relativeStandardUncertainty	_0..1	double	The relative standard uncertainty of a measurement is the (absolute) standard uncertainty divided by the magnitude of the exact value.
standardUncertainty	_0..1	decimal	The standard uncertainty of a quantity is the estimated standard deviation of the mean taken from a series of measurements.
standardUncertaintySN	_0..*	double	The standard uncertainty of a quantity is the estimated standard deviation of the mean taken from a series of measurements.
value	_0..1	None	A property to relate an observable thing with a value of any kind
valueSN	_0..1	None	A property to relate an observable thing with a value of any kind
exactConstant	_0..*	None
guidance	_0..*	string

Parents¶

QuantityValue

ContextualUnit¶

YAML Definition¶

Click to expand

ContextualUnit:
  is_a: Unit
  slots:
  - Verifiable_isoNormativeReference
  - Verifiable_normativeReference
  - Verifiable_wikidataMatch
  - Verifiable_dbpediaMatch
  - hasReciprocalUnit
  - isUnitOfSystem
  - omUnit
  - unitFor
  - Unit_applicableSystem
  - Unit_definedUnitOfSystem
  - Unit_derivedCoherentUnitOfSystem
  - Unit_derivedUnitOfSystem
  - Unit_exactMatch
  - Unit_hasDimensionVector
  - Unit_hasFactorUnit
  - Unit_hasQuantityKind
  - Unit_iec61360Code
  - Unit_prefix
  - Unit_qkdvDenominator
  - Unit_qkdvNumerator
  - Unit_scalingOf
  - Unit_ucumCode
  - Unit_udunitsCode
  - Unit_uneceCommonCode
  - Unit_altSymbol
  - Unit_latexDefinition
  - Unit_latexSymbol
  - Unit_siUnitsExpression
  - Unit_symbol
  - Unit_conversionMultiplier
  - Unit_conversionMultiplierSN
  - Unit_conversionOffset
  - Unit_conversionOffsetSN
  - Unit_factorUnitScalar
  - Unit_mathMLdefinition
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - ContextualUnit_broader
  slot_usage:
    broader:
      range: Unit

class_contextualunit_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
altSymbol	_0..*	None	An alternative symbol
applicableSystem	_0..*	SystemOfUnits	This property relates a unit of measure with a unit system that may or may not define the unit, but within which the unit is compatible.
conversionMultiplier	_0..1	None
conversionMultiplierSN	_0..1	None
conversionOffset	_0..1	None
conversionOffsetSN	_0..1	None
dbpediaMatch	_0..*	uri
definedUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure with the unit system that defines the unit.
derivedCoherentUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure to the unit system in which the unit is derived from the system's base units with a proportionality constant of one.
derivedUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure to the system of units in which it is defined as a derived unit. That is, the derived unit is defined as a product of the base units for the system raised to some rational power.
exactMatch	_0..*	Unit
factorUnitScalar	_0..1	None	For a derived unit that is not exactly the product of its factor units, this property defines the scalar with which that product has to be multiplied with.
hasDimensionVector	_0..1	QuantityKindDimensionVector
hasFactorUnit	_0..*	Class	This property relates a derived unit to one of its constituent factor units
hasQuantityKind	_0..*	QuantityKind
hasReciprocalUnit	_0..*	Unit
iec61360Code	_0..*	string
isUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure with a system of units that either a) defines the unit or b) allows the unit to be used within the system.
isoNormativeReference	_0..*	None	Provides a way to reference the ISO unit definition.
latexDefinition	_0..*	None
latexSymbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
mathMLdefinition	_0..1	None
normativeReference	_0..*	None	Provides a way to reference information that is an authoritative source providing a standard definition
omUnit	_0..*	None
prefix	_0..*	Prefix
qkdvDenominator	_0..1	QuantityKindDimensionVector
qkdvNumerator	_0..1	QuantityKindDimensionVector
scalingOf	_0..*	Unit	This property relates a unit to another unit it is scaled from
siUnitsExpression	_0..*	None
symbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
ucumCode	_0..*	UCUMcs	ucumCode associates a QUDT unit with its UCUM code (case-sensitive). In SHACL the values are derived from specific ucum properties using 'sh:values'.
udunitsCode	_0..*	string	The UDUNITS package supports units of physical quantities. Its C library provides for arithmetic manipulation of units and for conversion of numeric values between compatible units. The package contains an extensive unit database, which is in XML format and user-extendable. The package also contains a command-line utility for investigating units and converting values.
uneceCommonCode	_0..*	string	The UN/CEFACT Recommendation 20 provides three character alphabetic and alphanumeric codes for representing units of measurement for length, area, volume/capacity, mass (weight), time, and other quantities used in international trade. The codes are intended for use in manual and/or automated systems for the exchange of information between participants in international trade.
unitFor	_0..*	None
wikidataMatch	_0..*	uri
guidance	_0..*	string

Parents¶

Unit

CountingUnit¶

Used for all units that express counts. Examples are Atomic Number, Number, Number per Year, Percent and Sample per Second.

YAML Definition¶

Click to expand

CountingUnit:
  is_a: DimensionlessUnit
  slots:
  - Verifiable_isoNormativeReference
  - Verifiable_normativeReference
  - Verifiable_wikidataMatch
  - Verifiable_dbpediaMatch
  - hasReciprocalUnit
  - isUnitOfSystem
  - omUnit
  - unitFor
  - Unit_applicableSystem
  - Unit_definedUnitOfSystem
  - Unit_derivedCoherentUnitOfSystem
  - Unit_derivedUnitOfSystem
  - Unit_exactMatch
  - Unit_hasDimensionVector
  - Unit_hasFactorUnit
  - Unit_hasQuantityKind
  - Unit_iec61360Code
  - Unit_prefix
  - Unit_qkdvDenominator
  - Unit_qkdvNumerator
  - Unit_scalingOf
  - Unit_ucumCode
  - Unit_udunitsCode
  - Unit_uneceCommonCode
  - Unit_altSymbol
  - Unit_latexDefinition
  - Unit_latexSymbol
  - Unit_siUnitsExpression
  - Unit_symbol
  - Unit_conversionMultiplier
  - Unit_conversionMultiplierSN
  - Unit_conversionOffset
  - Unit_conversionOffsetSN
  - Unit_factorUnitScalar
  - Unit_mathMLdefinition
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription

class_countingunit_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
altSymbol	_0..*	None	An alternative symbol
applicableSystem	_0..*	SystemOfUnits	This property relates a unit of measure with a unit system that may or may not define the unit, but within which the unit is compatible.
conversionMultiplier	_0..1	None
conversionMultiplierSN	_0..1	None
conversionOffset	_0..1	None
conversionOffsetSN	_0..1	None
dbpediaMatch	_0..*	uri
definedUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure with the unit system that defines the unit.
derivedCoherentUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure to the unit system in which the unit is derived from the system's base units with a proportionality constant of one.
derivedUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure to the system of units in which it is defined as a derived unit. That is, the derived unit is defined as a product of the base units for the system raised to some rational power.
exactMatch	_0..*	Unit
factorUnitScalar	_0..1	None	For a derived unit that is not exactly the product of its factor units, this property defines the scalar with which that product has to be multiplied with.
hasDimensionVector	_0..1	QuantityKindDimensionVector
hasFactorUnit	_0..*	Class	This property relates a derived unit to one of its constituent factor units
hasQuantityKind	_0..*	QuantityKind
hasReciprocalUnit	_0..*	Unit
iec61360Code	_0..*	string
isUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure with a system of units that either a) defines the unit or b) allows the unit to be used within the system.
isoNormativeReference	_0..*	None	Provides a way to reference the ISO unit definition.
latexDefinition	_0..*	None
latexSymbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
mathMLdefinition	_0..1	None
normativeReference	_0..*	None	Provides a way to reference information that is an authoritative source providing a standard definition
omUnit	_0..*	None
prefix	_0..*	Prefix
qkdvDenominator	_0..1	QuantityKindDimensionVector
qkdvNumerator	_0..1	QuantityKindDimensionVector
scalingOf	_0..*	Unit	This property relates a unit to another unit it is scaled from
siUnitsExpression	_0..*	None
symbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
ucumCode	_0..*	UCUMcs	ucumCode associates a QUDT unit with its UCUM code (case-sensitive). In SHACL the values are derived from specific ucum properties using 'sh:values'.
udunitsCode	_0..*	string	The UDUNITS package supports units of physical quantities. Its C library provides for arithmetic manipulation of units and for conversion of numeric values between compatible units. The package contains an extensive unit database, which is in XML format and user-extendable. The package also contains a command-line utility for investigating units and converting values.
uneceCommonCode	_0..*	string	The UN/CEFACT Recommendation 20 provides three character alphabetic and alphanumeric codes for representing units of measurement for length, area, volume/capacity, mass (weight), time, and other quantities used in international trade. The codes are intended for use in manual and/or automated systems for the exchange of information between participants in international trade.
unitFor	_0..*	None
wikidataMatch	_0..*	uri
guidance	_0..*	string

Parents¶

DimensionlessUnit

CurrencyUnit¶

Currency Units have their own subclass of unit because: (a) they have additional properties such as 'country' and (b) their URIs do not conform to the same rules as other units.

Used for all units that express currency.

YAML Definition¶

Click to expand

CurrencyUnit:
  is_a: DimensionlessUnit
  slots:
  - Verifiable_isoNormativeReference
  - Verifiable_normativeReference
  - Verifiable_wikidataMatch
  - Verifiable_dbpediaMatch
  - hasReciprocalUnit
  - isUnitOfSystem
  - omUnit
  - unitFor
  - Unit_applicableSystem
  - Unit_definedUnitOfSystem
  - Unit_derivedCoherentUnitOfSystem
  - Unit_derivedUnitOfSystem
  - Unit_exactMatch
  - Unit_hasDimensionVector
  - Unit_hasFactorUnit
  - Unit_hasQuantityKind
  - Unit_iec61360Code
  - Unit_prefix
  - Unit_qkdvDenominator
  - Unit_qkdvNumerator
  - Unit_scalingOf
  - Unit_ucumCode
  - Unit_udunitsCode
  - Unit_uneceCommonCode
  - Unit_altSymbol
  - Unit_latexDefinition
  - Unit_latexSymbol
  - Unit_siUnitsExpression
  - Unit_symbol
  - Unit_conversionMultiplier
  - Unit_conversionMultiplierSN
  - Unit_conversionOffset
  - Unit_conversionOffsetSN
  - Unit_factorUnitScalar
  - Unit_mathMLdefinition
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - CurrencyUnit_currencyCode
  - CurrencyUnit_currencyExponent
  slot_usage:
    currencyCode:
      multivalued: false
    currencyExponent:
      multivalued: false

class_currencyunit_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
altSymbol	_0..*	None	An alternative symbol
applicableSystem	_0..*	SystemOfUnits	This property relates a unit of measure with a unit system that may or may not define the unit, but within which the unit is compatible.
conversionMultiplier	_0..1	None
conversionMultiplierSN	_0..1	None
conversionOffset	_0..1	None
conversionOffsetSN	_0..1	None
dbpediaMatch	_0..*	uri
definedUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure with the unit system that defines the unit.
derivedCoherentUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure to the unit system in which the unit is derived from the system's base units with a proportionality constant of one.
derivedUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure to the system of units in which it is defined as a derived unit. That is, the derived unit is defined as a product of the base units for the system raised to some rational power.
exactMatch	_0..*	Unit
factorUnitScalar	_0..1	None	For a derived unit that is not exactly the product of its factor units, this property defines the scalar with which that product has to be multiplied with.
hasDimensionVector	_0..1	QuantityKindDimensionVector
hasFactorUnit	_0..*	Class	This property relates a derived unit to one of its constituent factor units
hasQuantityKind	_0..*	QuantityKind
hasReciprocalUnit	_0..*	Unit
iec61360Code	_0..*	string
isUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure with a system of units that either a) defines the unit or b) allows the unit to be used within the system.
isoNormativeReference	_0..*	None	Provides a way to reference the ISO unit definition.
latexDefinition	_0..*	None
latexSymbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
mathMLdefinition	_0..1	None
normativeReference	_0..*	None	Provides a way to reference information that is an authoritative source providing a standard definition
omUnit	_0..*	None
prefix	_0..*	Prefix
qkdvDenominator	_0..1	QuantityKindDimensionVector
qkdvNumerator	_0..1	QuantityKindDimensionVector
scalingOf	_0..*	Unit	This property relates a unit to another unit it is scaled from
siUnitsExpression	_0..*	None
symbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
ucumCode	_0..*	UCUMcs	ucumCode associates a QUDT unit with its UCUM code (case-sensitive). In SHACL the values are derived from specific ucum properties using 'sh:values'.
udunitsCode	_0..*	string	The UDUNITS package supports units of physical quantities. Its C library provides for arithmetic manipulation of units and for conversion of numeric values between compatible units. The package contains an extensive unit database, which is in XML format and user-extendable. The package also contains a command-line utility for investigating units and converting values.
uneceCommonCode	_0..*	string	The UN/CEFACT Recommendation 20 provides three character alphabetic and alphanumeric codes for representing units of measurement for length, area, volume/capacity, mass (weight), time, and other quantities used in international trade. The codes are intended for use in manual and/or automated systems for the exchange of information between participants in international trade.
unitFor	_0..*	None
wikidataMatch	_0..*	uri
currencyCode	_0..1	None	Alphabetic Currency Code as defined by ISO 4217. For example, US Dollar has the code 'USD'.
currencyExponent	_0..1	None	The currency exponent indicates the number of decimal places between a major currency unit and its minor currency unit. For example, the US dollar is the major currency unit of the United States, and the US cent is the minor currency unit. Since one cent is 1/100 of a dollar, the US dollar has a currency exponent of 2. However, the Japanese Yen has no minor currency units, so the yen has a currency exponent of 0.
guidance	_0..*	string

Parents¶

DimensionlessUnit

DataEncoding¶

Data Encoding expresses the properties that specify how data is represented at the bit and byte level. These properties are applicable to describing raw data.

YAML Definition¶

Click to expand

DataEncoding:
  is_a: Aspect
  slots:
  - DataEncoding_bitOrder
  - DataEncoding_encoding
  - DataEncoding_byteOrder
  slot_usage:
    bitOrder:
      range: EndianType
      multivalued: false
    encoding:
      range: Encoding
      multivalued: false
    byteOrder:
      multivalued: false

class_dataencoding_erd

Attributes¶

Name	Cardinality:	Type	Description
bitOrder	_0..1	EndianType
byteOrder	_0..1	EndianType	Byte order is an enumeration of two values: 'Big Endian' and 'Little Endian' and is used to denote whether the most signiticant byte is either first or last, respectively.
encoding	_0..1	Encoding

Parents¶

Aspect

Referenced by:¶

Quantifiable : dataEncoding _0..*

DataItem¶

YAML Definition¶

Click to expand

DataItem:
  is_a: Concept
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - DataItem_value
  slot_usage:
    value:
      range: string
      multivalued: false

class_dataitem_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
deprecated	_0..1	None
guidance	_0..*	string
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.
value	_0..1	string	A property to relate an observable thing with a value of any kind

Parents¶

Concept

Datatype¶

YAML Definition¶

Click to expand

Datatype:
  is_a: Concept
  slots:
  - guidance
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - Datatype_basis
  - Datatype_cardinality
  - Datatype_orderedType
  - Datatype_ansiSQLName
  - Datatype_cName
  - Datatype_oracleSQLName
  - Datatype_protocolBuffersName
  - Datatype_pythonName
  - Datatype_vbName
  - Datatype_bounded
  - Datatype_id
  - Datatype_javaName
  - Datatype_jsName
  - Datatype_matlabName
  - Datatype_microsoftSQLServerName
  - Datatype_mySQLName
  - Datatype_odbcName
  - Datatype_oleDBName
  slot_usage:
    basis:
      range: Datatype
      multivalued: false
    cardinality:
      range: CardinalityType
      multivalued: false
    orderedType:
      range: OrderedType
      multivalued: false
    ansiSQLName:
      multivalued: false
    cName:
      multivalued: false
    oracleSQLName:
      multivalued: false
    protocolBuffersName:
      multivalued: false
    pythonName:
      multivalued: false
    vbName:
      multivalued: false
    bounded:
      multivalued: false
    id:
      multivalued: false
    javaName:
      multivalued: false
    jsName:
      multivalued: false
    matlabName:
      multivalued: false
    microsoftSQLServerName:
      multivalued: false
    mySQLName:
      multivalued: false
    odbcName:
      multivalued: false
    oleDBName:
      multivalued: false

class_datatype_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
deprecated	_0..1	None
guidance	_0..*	string
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.
ansiSQLName	_0..1	string
basis	_0..1	Datatype
bounded	_0..1	None
cName	_0..1	string
cardinality	_0..1	CardinalityType
javaName	_0..1	None
jsName	_0..1	None
matlabName	_0..1	None
microsoftSQLServerName	_0..1	None
mySQLName	_0..1	None
odbcName	_0..1	None
oleDBName	_0..1	None	OLE DB (Object Linking and Embedding, Database, sometimes written as OLEDB or OLE-DB), an API designed by Microsoft, allows accessing data from a variety of sources in a uniform manner. The API provides a set of interfaces implemented using the Component Object Model (COM); it is otherwise unrelated to OLE.
oracleSQLName	_0..1	string
orderedType	_0..1	OrderedType
protocolBuffersName	_0..1	string
pythonName	_0..1	string
vbName	_0..1	string

Parents¶

Concept

Children¶

ScalarDatatype

Referenced by:¶

Datatype : basis _0..*
Quantifiable : datatype _0..*
ScalarDatatype : rdfsDatatype _0..*

DateTimeStringEncodingType¶

YAML Definition¶

Click to expand

DateTimeStringEncodingType:
  is_a: StringEncodingType
  slots:
  - DateTimeStringEncodingType_allowedPattern
  slot_usage:
    allowedPattern:
      required: true

Local class diagram¶

class_datetimestringencodingtype_local

Attributes¶

Name	Cardinality:	Type	Description
allowedPattern	_1..*	None

Parents¶

StringEncodingType

DecimalPrefix¶

A Decimal Prefix is a prefix for multiples of units that are powers of 10.

YAML Definition¶

Click to expand

DecimalPrefix:
  is_a: Prefix
  slots:
  - Verifiable_isoNormativeReference
  - Verifiable_normativeReference
  - Verifiable_wikidataMatch
  - Verifiable_dbpediaMatch
  - Prefix_exactMatch
  - Prefix_ucumCode
  - Prefix_altSymbol
  - Prefix_latexSymbol
  - Prefix_symbol
  - Prefix_prefixMultiplier
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription

class_decimalprefix_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
altSymbol	_0..*	None	An alternative symbol
dbpediaMatch	_0..*	uri
exactMatch	_0..*	Prefix
isoNormativeReference	_0..*	None	Provides a way to reference the ISO unit definition.
latexSymbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
normativeReference	_0..*	None	Provides a way to reference information that is an authoritative source providing a standard definition
prefixMultiplier	_0..1	None
symbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
ucumCode	_0..*	UCUMcs-term	ucumCode associates a QUDT unit with its UCUM code (case-sensitive). In SHACL the values are derived from specific ucum properties using 'sh:values'.
wikidataMatch	_0..*	uri
guidance	_0..*	string

Parents¶

Prefix

DerivedUnit¶

A DerivedUnit is a type specification for units that are derived from other units.

YAML Definition¶

Click to expand

DerivedUnit:
  is_a: Unit
  slots:
  - Verifiable_isoNormativeReference
  - Verifiable_normativeReference
  - Verifiable_wikidataMatch
  - Verifiable_dbpediaMatch
  - hasReciprocalUnit
  - isUnitOfSystem
  - omUnit
  - unitFor
  - Unit_applicableSystem
  - Unit_definedUnitOfSystem
  - Unit_derivedCoherentUnitOfSystem
  - Unit_derivedUnitOfSystem
  - Unit_exactMatch
  - Unit_hasDimensionVector
  - Unit_hasFactorUnit
  - Unit_hasQuantityKind
  - Unit_iec61360Code
  - Unit_prefix
  - Unit_qkdvDenominator
  - Unit_qkdvNumerator
  - Unit_scalingOf
  - Unit_ucumCode
  - Unit_udunitsCode
  - Unit_uneceCommonCode
  - Unit_altSymbol
  - Unit_latexDefinition
  - Unit_latexSymbol
  - Unit_siUnitsExpression
  - Unit_symbol
  - Unit_conversionMultiplier
  - Unit_conversionMultiplierSN
  - Unit_conversionOffset
  - Unit_conversionOffsetSN
  - Unit_factorUnitScalar
  - Unit_mathMLdefinition
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription

class_derivedunit_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
altSymbol	_0..*	None	An alternative symbol
applicableSystem	_0..*	SystemOfUnits	This property relates a unit of measure with a unit system that may or may not define the unit, but within which the unit is compatible.
conversionMultiplier	_0..1	None
conversionMultiplierSN	_0..1	None
conversionOffset	_0..1	None
conversionOffsetSN	_0..1	None
dbpediaMatch	_0..*	uri
definedUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure with the unit system that defines the unit.
derivedCoherentUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure to the unit system in which the unit is derived from the system's base units with a proportionality constant of one.
derivedUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure to the system of units in which it is defined as a derived unit. That is, the derived unit is defined as a product of the base units for the system raised to some rational power.
exactMatch	_0..*	Unit
factorUnitScalar	_0..1	None	For a derived unit that is not exactly the product of its factor units, this property defines the scalar with which that product has to be multiplied with.
hasDimensionVector	_0..1	QuantityKindDimensionVector
hasFactorUnit	_0..*	Class	This property relates a derived unit to one of its constituent factor units
hasQuantityKind	_0..*	QuantityKind
hasReciprocalUnit	_0..*	Unit
iec61360Code	_0..*	string
isUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure with a system of units that either a) defines the unit or b) allows the unit to be used within the system.
isoNormativeReference	_0..*	None	Provides a way to reference the ISO unit definition.
latexDefinition	_0..*	None
latexSymbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
mathMLdefinition	_0..1	None
normativeReference	_0..*	None	Provides a way to reference information that is an authoritative source providing a standard definition
omUnit	_0..*	None
prefix	_0..*	Prefix
qkdvDenominator	_0..1	QuantityKindDimensionVector
qkdvNumerator	_0..1	QuantityKindDimensionVector
scalingOf	_0..*	Unit	This property relates a unit to another unit it is scaled from
siUnitsExpression	_0..*	None
symbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
ucumCode	_0..*	UCUMcs	ucumCode associates a QUDT unit with its UCUM code (case-sensitive). In SHACL the values are derived from specific ucum properties using 'sh:values'.
udunitsCode	_0..*	string	The UDUNITS package supports units of physical quantities. Its C library provides for arithmetic manipulation of units and for conversion of numeric values between compatible units. The package contains an extensive unit database, which is in XML format and user-extendable. The package also contains a command-line utility for investigating units and converting values.
uneceCommonCode	_0..*	string	The UN/CEFACT Recommendation 20 provides three character alphabetic and alphanumeric codes for representing units of measurement for length, area, volume/capacity, mass (weight), time, and other quantities used in international trade. The codes are intended for use in manual and/or automated systems for the exchange of information between participants in international trade.
unitFor	_0..*	None
wikidataMatch	_0..*	uri
guidance	_0..*	string

Parents¶

Unit

DimensionlessUnit¶

A Dimensionless Unit is a quantity for which all the exponents of the factors corresponding to the base quantities in its quantity dimension are zero.

YAML Definition¶

Click to expand

DimensionlessUnit:
  is_a: Unit
  slots:
  - Verifiable_isoNormativeReference
  - Verifiable_normativeReference
  - Verifiable_wikidataMatch
  - Verifiable_dbpediaMatch
  - hasReciprocalUnit
  - isUnitOfSystem
  - omUnit
  - unitFor
  - Unit_applicableSystem
  - Unit_definedUnitOfSystem
  - Unit_derivedCoherentUnitOfSystem
  - Unit_derivedUnitOfSystem
  - Unit_exactMatch
  - Unit_hasDimensionVector
  - Unit_hasFactorUnit
  - Unit_hasQuantityKind
  - Unit_iec61360Code
  - Unit_prefix
  - Unit_qkdvDenominator
  - Unit_qkdvNumerator
  - Unit_scalingOf
  - Unit_ucumCode
  - Unit_udunitsCode
  - Unit_uneceCommonCode
  - Unit_altSymbol
  - Unit_latexDefinition
  - Unit_latexSymbol
  - Unit_siUnitsExpression
  - Unit_symbol
  - Unit_conversionMultiplier
  - Unit_conversionMultiplierSN
  - Unit_conversionOffset
  - Unit_conversionOffsetSN
  - Unit_factorUnitScalar
  - Unit_mathMLdefinition
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription

class_dimensionlessunit_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
altSymbol	_0..*	None	An alternative symbol
applicableSystem	_0..*	SystemOfUnits	This property relates a unit of measure with a unit system that may or may not define the unit, but within which the unit is compatible.
conversionMultiplier	_0..1	None
conversionMultiplierSN	_0..1	None
conversionOffset	_0..1	None
conversionOffsetSN	_0..1	None
dbpediaMatch	_0..*	uri
definedUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure with the unit system that defines the unit.
derivedCoherentUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure to the unit system in which the unit is derived from the system's base units with a proportionality constant of one.
derivedUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure to the system of units in which it is defined as a derived unit. That is, the derived unit is defined as a product of the base units for the system raised to some rational power.
exactMatch	_0..*	Unit
factorUnitScalar	_0..1	None	For a derived unit that is not exactly the product of its factor units, this property defines the scalar with which that product has to be multiplied with.
hasDimensionVector	_0..1	QuantityKindDimensionVector
hasFactorUnit	_0..*	Class	This property relates a derived unit to one of its constituent factor units
hasQuantityKind	_0..*	QuantityKind
hasReciprocalUnit	_0..*	Unit
iec61360Code	_0..*	string
isUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure with a system of units that either a) defines the unit or b) allows the unit to be used within the system.
isoNormativeReference	_0..*	None	Provides a way to reference the ISO unit definition.
latexDefinition	_0..*	None
latexSymbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
mathMLdefinition	_0..1	None
normativeReference	_0..*	None	Provides a way to reference information that is an authoritative source providing a standard definition
omUnit	_0..*	None
prefix	_0..*	Prefix
qkdvDenominator	_0..1	QuantityKindDimensionVector
qkdvNumerator	_0..1	QuantityKindDimensionVector
scalingOf	_0..*	Unit	This property relates a unit to another unit it is scaled from
siUnitsExpression	_0..*	None
symbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
ucumCode	_0..*	UCUMcs	ucumCode associates a QUDT unit with its UCUM code (case-sensitive). In SHACL the values are derived from specific ucum properties using 'sh:values'.
udunitsCode	_0..*	string	The UDUNITS package supports units of physical quantities. Its C library provides for arithmetic manipulation of units and for conversion of numeric values between compatible units. The package contains an extensive unit database, which is in XML format and user-extendable. The package also contains a command-line utility for investigating units and converting values.
uneceCommonCode	_0..*	string	The UN/CEFACT Recommendation 20 provides three character alphabetic and alphanumeric codes for representing units of measurement for length, area, volume/capacity, mass (weight), time, and other quantities used in international trade. The codes are intended for use in manual and/or automated systems for the exchange of information between participants in international trade.
unitFor	_0..*	None
wikidataMatch	_0..*	uri
guidance	_0..*	string

Parents¶

Unit

Children¶

AngleUnit
CountingUnit
CurrencyUnit
LogarithmicUnit

Discipline¶

YAML Definition¶

Click to expand

Discipline:
  is_a: Concept
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription

class_discipline_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
deprecated	_0..1	None
guidance	_0..*	string
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.

Parents¶

Concept

Encoding¶

YAML Definition¶

Click to expand

Encoding:
  is_a: Concept
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - Encoding_bits
  - Encoding_bytes
  slot_usage:
    bits:
      multivalued: false
    bytes:
      multivalued: false

class_encoding_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
deprecated	_0..1	None
guidance	_0..*	string
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.
bits	_0..1	None
bytes	_0..1	None

Parents¶

Concept

Children¶

BitEncodingType
BooleanEncodingType
ByteEncodingType
CharEncodingType
FloatingPointEncodingType
IntegerEncodingType

Referenced by:¶

DataEncoding : encoding _0..*

EndianType¶

YAML Definition¶

Click to expand

EndianType:
  is_a: EnumeratedValue
  slots:
  - Verifiable_isoNormativeReference
  - Verifiable_normativeReference
  - Verifiable_wikidataMatch
  - Verifiable_dbpediaMatch
  - EnumeratedValue_altSymbol
  - EnumeratedValue_description
  - EnumeratedValue_abbreviation
  - EnumeratedValue_symbol
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_deprecated
  - Concept_plainTextDescription

class_endiantype_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
altSymbol	_0..*	None	An alternative symbol
dbpediaMatch	_0..*	uri
isoNormativeReference	_0..*	None	Provides a way to reference the ISO unit definition.
normativeReference	_0..*	None	Provides a way to reference information that is an authoritative source providing a standard definition
symbol	_0..1	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
wikidataMatch	_0..*	uri
guidance	_0..*	string

Parents¶

EnumeratedValue

Referenced by:¶

DataEncoding : bitOrder _0..*
DataEncoding : byteOrder _0..*

EnumeratedQuantity¶

YAML Definition¶

Click to expand

EnumeratedQuantity:
  is_a: Concept
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - EnumeratedQuantity_enumeratedValue
  - EnumeratedQuantity_enumeration
  slot_usage:
    enumeratedValue:
      range: EnumeratedValue
    enumeration:
      range: Enumeration

class_enumeratedquantity_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
deprecated	_0..1	None
guidance	_0..*	string
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.
enumeratedValue	_0..*	EnumeratedValue
enumeration	_0..*	Enumeration

Parents¶

Concept

EnumeratedValue¶

YAML Definition¶

Click to expand

EnumeratedValue:
  is_a: Verifiable
  mixins:
  - Concept
  slots:
  - Verifiable_isoNormativeReference
  - Verifiable_normativeReference
  - Verifiable_wikidataMatch
  - Verifiable_dbpediaMatch
  - EnumeratedValue_altSymbol
  - EnumeratedValue_description
  - EnumeratedValue_abbreviation
  - EnumeratedValue_symbol
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_deprecated
  - Concept_plainTextDescription
  slot_usage:
    altSymbol:
      required: false
    description:
      multivalued: false
    abbreviation:
      multivalued: false
    symbol:
      multivalued: false

class_enumeratedvalue_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
dbpediaMatch	_0..*	uri
isoNormativeReference	_0..*	None	Provides a way to reference the ISO unit definition.
normativeReference	_0..*	None	Provides a way to reference information that is an authoritative source providing a standard definition
wikidataMatch	_0..*	uri
guidance	_0..*	string
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
altSymbol	_0..*	None	An alternative symbol
symbol	_0..1	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.

Parents¶

Verifiable

Children¶

CardinalityType
EndianType
OrderedType
QuantityType
RuleType
ScaleType
TransformType

Uses¶

mixin: Concept

Referenced by:¶

EnumeratedQuantity : enumeratedValue _0..*
Enumeration : default _0..*
Enumeration : element _1..*

Enumeration¶

An enumeration is a set of literals from which a single value is selected. Each literal can have a tag as an integer within a standard encoding appropriate to the range of integer values. Consistency of enumeration types will allow them, and the enumerated values, to be referred to unambiguously either through symbolic name or encoding. Enumerated values are also controlled vocabularies and as such need to be standardized. Without this consistency enumeration literals can be stated differently and result in data conflicts and misinterpretations.

The tags are a set of positive whole numbers, not necessarily contiguous and having no numerical significance, each corresponding to the associated literal identifier. An order attribute can also be given on the enumeration elements. An enumeration can itself be a member of an enumeration. This allows enumerations to be enumerated in a selection. Enumerations are also subclasses of Scalar Datatype. This allows them to be used as the reference of a datatype specification.

YAML Definition¶

Click to expand

Enumeration:
  is_a: Concept
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_deprecated
  - Concept_plainTextDescription
  - Enumeration_default
  - Enumeration_element
  - Enumeration_abbreviation
  slot_usage:
    default:
      range: EnumeratedValue
      multivalued: false
    element:
      range: EnumeratedValue
      required: true
    abbreviation:
      multivalued: false

class_enumeration_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
deprecated	_0..1	None
guidance	_0..*	string
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
default	_0..1	EnumeratedValue	The default element in an enumeration
element	_1..*	EnumeratedValue	An element of an enumeration

Parents¶

Concept

Used as mixin by¶

EnumerationScale

Referenced by:¶

EnumeratedQuantity : enumeration _0..*
SystemOfQuantityKinds : baseDimensionEnumeration _0..*

EnumerationScale¶

YAML Definition¶

Click to expand

EnumerationScale:
  is_a: Scale
  mixins:
  - Enumeration
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - Scale_permissibleMaths
  - Scale_permissibleTransformation
  - Scale_scaleType
  - Scale_dataStructure
  - Enumeration_default
  - Enumeration_element

class_enumerationscale_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
dataStructure	_0..1	None
deprecated	_0..1	None
guidance	_0..*	string
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
permissibleMaths	_0..*	MathsFunctionType
permissibleTransformation	_0..*	TransformType
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.
scaleType	_0..1	ScaleType
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.

Parents¶

Scale

Uses¶

mixin: Enumeration

Figure¶

YAML Definition¶

Click to expand

Figure:
  is_a: Concept
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - Figure_imageLocation
  - Figure_figureCaption
  - Figure_figureLabel
  - Figure_height
  - Figure_image
  - Figure_landscape
  - Figure_width
  slot_usage:
    imageLocation:
      required: true
      multivalued: false
    figureCaption:
      multivalued: false
    figureLabel:
      multivalued: false
    height:
      multivalued: false
    image:
      multivalued: false
    landscape:
      multivalued: false
    width:
      multivalued: false

class_figure_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
deprecated	_0..1	None
guidance	_0..*	string
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.
figureCaption	_0..1	None
figureLabel	_0..1	None
height	_0..1	None
image	_0..1	None
imageLocation	_1..1	None
landscape	_0..1	None
width	_0..1	None

Parents¶

Concept

Referenced by:¶

FloatingPointEncodingType¶

YAML Definition¶

Click to expand

FloatingPointEncodingType:
  is_a: Encoding
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - Encoding_bits
  - Encoding_bytes

class_floatingpointencodingtype_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
bits	_0..1	None
bytes	_0..1	None
deprecated	_0..1	None
guidance	_0..*	string
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.

Parents¶

Encoding

IntegerEncodingType¶

YAML Definition¶

Click to expand

IntegerEncodingType:
  is_a: Encoding
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - Encoding_bits
  - Encoding_bytes

class_integerencodingtype_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
bits	_0..1	None
bytes	_0..1	None
deprecated	_0..1	None
guidance	_0..*	string
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.

Parents¶

Encoding

IntervalScale¶

The interval type allows for the degree of difference between items, but not the ratio between them. Examples include temperature with the Celsius scale, which has two defined points (the freezing and boiling point of water at specific conditions) and then separated into 100 intervals, date when measured from an arbitrary epoch (such as AD), percentage such as a percentage return on a stock,[16] location in Cartesian coordinates, and direction measured in degrees from true or magnetic north. Ratios are not meaningful since 20 °C cannot be said to be \"twice as hot\" as 10 °C, nor can multiplication/division be carried out between any two dates directly. However, ratios of differences can be expressed; for example, one difference can be twice another. Interval type variables are sometimes also called \"scaled variables\", but the formal mathematical term is an affine space (in this case an affine line).

Characteristics: median, percentile & Monotonic increasing (order (<) & totally ordered set

median, percentile & Monotonic increasing (order (<)) & totally ordered set

YAML Definition¶

Click to expand

IntervalScale:
  is_a: Scale
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - Scale_permissibleMaths
  - Scale_permissibleTransformation
  - Scale_scaleType
  - Scale_dataStructure

class_intervalscale_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
dataStructure	_0..1	None
deprecated	_0..1	None
guidance	_0..*	string
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
permissibleMaths	_0..*	MathsFunctionType
permissibleTransformation	_0..*	TransformType
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.
scaleType	_0..1	ScaleType

Parents¶

Scale

LatexString¶

A type of string in which some characters may be wrapped with '$' and '$ characters for LaTeX rendering.

YAML Definition¶

Click to expand

LatexString: {}

This class has no attributes

List¶

YAML Definition¶

Click to expand

List: {}

This class has no attributes

LogarithmicUnit¶

Logarithmic units are abstract mathematical units that can be used to express any quantities (physical or mathematical) that are defined on a logarithmic scale, that is, as being proportional to the value of a logarithm function. Examples of logarithmic units include common units of information and entropy, such as the bit, and the byte, as well as units of relative signal strength magnitude such as the decibel.

YAML Definition¶

Click to expand

LogarithmicUnit:
  is_a: DimensionlessUnit
  slots:
  - Verifiable_isoNormativeReference
  - Verifiable_normativeReference
  - Verifiable_wikidataMatch
  - Verifiable_dbpediaMatch
  - hasReciprocalUnit
  - isUnitOfSystem
  - omUnit
  - unitFor
  - Unit_applicableSystem
  - Unit_definedUnitOfSystem
  - Unit_derivedCoherentUnitOfSystem
  - Unit_derivedUnitOfSystem
  - Unit_exactMatch
  - Unit_hasDimensionVector
  - Unit_hasFactorUnit
  - Unit_hasQuantityKind
  - Unit_iec61360Code
  - Unit_prefix
  - Unit_qkdvDenominator
  - Unit_qkdvNumerator
  - Unit_scalingOf
  - Unit_ucumCode
  - Unit_udunitsCode
  - Unit_uneceCommonCode
  - Unit_altSymbol
  - Unit_latexDefinition
  - Unit_latexSymbol
  - Unit_siUnitsExpression
  - Unit_symbol
  - Unit_conversionMultiplier
  - Unit_conversionMultiplierSN
  - Unit_conversionOffset
  - Unit_conversionOffsetSN
  - Unit_factorUnitScalar
  - Unit_mathMLdefinition
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription

class_logarithmicunit_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
altSymbol	_0..*	None	An alternative symbol
applicableSystem	_0..*	SystemOfUnits	This property relates a unit of measure with a unit system that may or may not define the unit, but within which the unit is compatible.
conversionMultiplier	_0..1	None
conversionMultiplierSN	_0..1	None
conversionOffset	_0..1	None
conversionOffsetSN	_0..1	None
dbpediaMatch	_0..*	uri
definedUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure with the unit system that defines the unit.
derivedCoherentUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure to the unit system in which the unit is derived from the system's base units with a proportionality constant of one.
derivedUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure to the system of units in which it is defined as a derived unit. That is, the derived unit is defined as a product of the base units for the system raised to some rational power.
exactMatch	_0..*	Unit
factorUnitScalar	_0..1	None	For a derived unit that is not exactly the product of its factor units, this property defines the scalar with which that product has to be multiplied with.
hasDimensionVector	_0..1	QuantityKindDimensionVector
hasFactorUnit	_0..*	Class	This property relates a derived unit to one of its constituent factor units
hasQuantityKind	_0..*	QuantityKind
hasReciprocalUnit	_0..*	Unit
iec61360Code	_0..*	string
isUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure with a system of units that either a) defines the unit or b) allows the unit to be used within the system.
isoNormativeReference	_0..*	None	Provides a way to reference the ISO unit definition.
latexDefinition	_0..*	None
latexSymbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
mathMLdefinition	_0..1	None
normativeReference	_0..*	None	Provides a way to reference information that is an authoritative source providing a standard definition
omUnit	_0..*	None
prefix	_0..*	Prefix
qkdvDenominator	_0..1	QuantityKindDimensionVector
qkdvNumerator	_0..1	QuantityKindDimensionVector
scalingOf	_0..*	Unit	This property relates a unit to another unit it is scaled from
siUnitsExpression	_0..*	None
symbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
ucumCode	_0..*	UCUMcs	ucumCode associates a QUDT unit with its UCUM code (case-sensitive). In SHACL the values are derived from specific ucum properties using 'sh:values'.
udunitsCode	_0..*	string	The UDUNITS package supports units of physical quantities. Its C library provides for arithmetic manipulation of units and for conversion of numeric values between compatible units. The package contains an extensive unit database, which is in XML format and user-extendable. The package also contains a command-line utility for investigating units and converting values.
uneceCommonCode	_0..*	string	The UN/CEFACT Recommendation 20 provides three character alphabetic and alphanumeric codes for representing units of measurement for length, area, volume/capacity, mass (weight), time, and other quantities used in international trade. The codes are intended for use in manual and/or automated systems for the exchange of information between participants in international trade.
unitFor	_0..*	None
wikidataMatch	_0..*	uri
guidance	_0..*	string

Parents¶

DimensionlessUnit

MathsFunctionType¶

YAML Definition¶

Click to expand

MathsFunctionType:
  is_a: Concept
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription

class_mathsfunctiontype_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
deprecated	_0..1	None
guidance	_0..*	string
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.

Parents¶

Concept

Referenced by:¶

ScaleType : permissibleMaths _0..*
Scale : permissibleMaths _0..*

NISTSP811Comment¶

YAML Definition¶

Click to expand

NIST_SP811_Comment:
  is_a: Comment
  slots:
  - Verifiable_isoNormativeReference
  - Verifiable_normativeReference
  - Verifiable_wikidataMatch
  - Verifiable_dbpediaMatch
  - Comment_rationale
  - Comment_description

Local class diagram¶

class_nist_sp811_comment_local

Attributes¶

Name	Cardinality:	Type	Description
description	_0..1	None
dbpediaMatch	_0..*	uri
isoNormativeReference	_0..*	None	Provides a way to reference the ISO unit definition.
normativeReference	_0..*	None	Provides a way to reference information that is an authoritative source providing a standard definition
rationale	_0..*	string
wikidataMatch	_0..*	uri

Parents¶

Comment

NominalScale¶

A nominal scale differentiates between items or subjects based only on their names or (meta-)categories and other qualitative classifications they belong to; thus dichotomous data involves the construction of classifications as well as the classification of items. Discovery of an exception to a classification can be viewed as progress. Numbers may be used to represent the variables but the numbers do not have numerical value or relationship: For example, a Globally unique identifier. Examples of these classifications include gender, nationality, ethnicity, language, genre, style, biological species, and form. In a university one could also use hall of affiliation as an example.

YAML Definition¶

Click to expand

NominalScale:
  is_a: Scale
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - Scale_permissibleMaths
  - Scale_permissibleTransformation
  - Scale_scaleType
  - Scale_dataStructure

class_nominalscale_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
dataStructure	_0..1	None
deprecated	_0..1	None
guidance	_0..*	string
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
permissibleMaths	_0..*	MathsFunctionType
permissibleTransformation	_0..*	TransformType
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.
scaleType	_0..1	ScaleType

Parents¶

Scale

NumericUnion¶

YAML Definition¶

Click to expand

NumericUnion:
  mixins:
  - Concept
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription

class_numericunion_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
guidance	_0..*	string

Uses¶

mixin: Concept

Referenced by:¶

Ontology¶

YAML Definition¶

Click to expand

Ontology: {}

This class has no attributes

Referenced by:¶

OrderedType¶

YAML Definition¶

Click to expand

OrderedType:
  is_a: EnumeratedValue
  slots:
  - Verifiable_isoNormativeReference
  - Verifiable_normativeReference
  - Verifiable_wikidataMatch
  - Verifiable_dbpediaMatch
  - EnumeratedValue_altSymbol
  - EnumeratedValue_description
  - EnumeratedValue_abbreviation
  - EnumeratedValue_symbol
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_deprecated
  - Concept_plainTextDescription
  - OrderedType_literal
  slot_usage:
    literal:
      multivalued: false

class_orderedtype_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
altSymbol	_0..*	None	An alternative symbol
dbpediaMatch	_0..*	uri
isoNormativeReference	_0..*	None	Provides a way to reference the ISO unit definition.
normativeReference	_0..*	None	Provides a way to reference information that is an authoritative source providing a standard definition
symbol	_0..1	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
wikidataMatch	_0..*	uri
literal	_0..1	None
guidance	_0..*	string

Parents¶

EnumeratedValue

Referenced by:¶

Datatype : orderedType _0..*

OrdinalScale¶

The ordinal type allows for rank order (1st, 2nd, 3rd, etc.) by which data can be sorted, but still does not allow for relative degree of difference between them. Examples include, on one hand, dichotomous data with dichotomous (or dichotomized) values such as 'sick' vs. 'healthy' when measuring health, 'guilty' vs. 'innocent' when making judgments in courts, 'wrong/false' vs. 'right/true' when measuring truth value, and, on the other hand, non-dichotomous data consisting of a spectrum of values, such as 'completely agree', 'mostly agree', 'mostly disagree', 'completely disagree' when measuring opinion.

YAML Definition¶

Click to expand

OrdinalScale:
  is_a: Scale
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - Scale_permissibleMaths
  - Scale_permissibleTransformation
  - Scale_scaleType
  - Scale_dataStructure
  - OrdinalScale_order
  slot_usage:
    order:
      required: true
      multivalued: false

class_ordinalscale_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
dataStructure	_0..1	None
deprecated	_0..1	None
guidance	_0..*	string
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
permissibleMaths	_0..*	MathsFunctionType
permissibleTransformation	_0..*	TransformType
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.
scaleType	_0..1	ScaleType
order	_1..1	None

Parents¶

Scale

Organization¶

YAML Definition¶

Click to expand

Organization:
  is_a: Concept
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - Organization_url
  slot_usage:
    url:
      required: false

class_organization_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
deprecated	_0..1	None
guidance	_0..*	string
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.
url	_0..*	None

Parents¶

Concept

PhysicalConstant¶

A physical constant is a physical quantity that is generally believed to be both universal in nature and constant in time. It can be contrasted with a mathematical constant, which is a fixed numerical value but does not directly involve any physical measurement. There are many physical constants in science, some of the most widely recognized being the speed of light in vacuum c, Newton's gravitational constant G, Planck's constant h, the electric permittivity of free space ε0, and the elementary charge e. Physical constants can take many dimensional forms, or may be dimensionless depending on the system of quantities and units used.

YAML Definition¶

Click to expand

PhysicalConstant:
  is_a: Quantity
  slots:
  - Quantifiable_dataEncoding
  - Quantifiable_datatype
  - Quantifiable_hasUnit
  - Quantifiable_relativeStandardUncertainty
  - Quantifiable_standardUncertainty
  - Quantifiable_standardUncertaintySN
  - Quantifiable_value
  - Quantifiable_valueSN
  - Quantity_hasQuantityKind
  - Quantity_quantityValue
  - Quantity_isDeltaQuantity
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - PhysicalConstant_applicableSystem
  - PhysicalConstant_applicableUnit
  - PhysicalConstant_exactMatch
  - PhysicalConstant_hasDimensionVector
  - PhysicalConstant_ucumCode
  - PhysicalConstant_exactConstant
  - PhysicalConstant_altSymbol
  - PhysicalConstant_isoNormativeReference
  - PhysicalConstant_latexSymbol
  - PhysicalConstant_normativeReference
  - PhysicalConstant_symbol
  - PhysicalConstant_latexDefinition
  - PhysicalConstant_mathMLdefinition
  slot_usage:
    applicableSystem:
      range: SystemOfUnits
    applicableUnit:
      range: Unit
    exactMatch:
      range: PhysicalConstant
    hasDimensionVector:
      range: QuantityKindDimensionVector
    ucumCode:
      required: false
    exactConstant:
      range: boolean
    altSymbol:
      required: false
    isoNormativeReference:
      required: false
    latexSymbol:
      required: false
    normativeReference:
      required: false
    symbol:
      required: false
    latexDefinition:
      multivalued: false
    mathMLdefinition:
      multivalued: false

class_physicalconstant_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
dataEncoding	_0..1	DataEncoding
datatype	_0..1	Datatype
hasQuantityKind	_0..*	QuantityKind
hasUnit	_0..1	Unit	This property relates a factor unit to its unit or a system of units with a unit of measure that is either a) defined by the system, or b) accepted for use by the system and is convertible to a unit of equivalent dimension that is defined by the system. Systems of units may distinguish between base and derived units. Base units are the units which measure the base quantities for the corresponding system of quantities. The base units are used to define units for all other quantities as products of powers of the base units. Such units are called derived units for the system.
isDeltaQuantity	_0..*	boolean
quantityValue	_0..*	QuantityValue
relativeStandardUncertainty	_0..1	double	The relative standard uncertainty of a measurement is the (absolute) standard uncertainty divided by the magnitude of the exact value.
standardUncertainty	_0..1	decimal	The standard uncertainty of a quantity is the estimated standard deviation of the mean taken from a series of measurements.
standardUncertaintySN	_0..*	double	The standard uncertainty of a quantity is the estimated standard deviation of the mean taken from a series of measurements.
value	_0..1	None	A property to relate an observable thing with a value of any kind
valueSN	_0..1	None	A property to relate an observable thing with a value of any kind
altSymbol	_0..*	None	An alternative symbol
applicableSystem	_0..*	SystemOfUnits	This property relates a unit of measure with a unit system that may or may not define the unit, but within which the unit is compatible.
applicableUnit	_0..*	Unit	See https://github.com/qudt/qudt-public-repo/wiki/Advanced-User-Guide#4-computing-applicable-units-for-a-quantitykind on how `qudt:applicableUnit` is computed from `qudt:hasQuantityKind` and then materialized
exactConstant	_0..*	boolean
exactMatch	_0..*	PhysicalConstant
hasDimensionVector	_0..*	QuantityKindDimensionVector
isoNormativeReference	_0..*	None	Provides a way to reference the ISO unit definition.
latexDefinition	_0..1	None
latexSymbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
mathMLdefinition	_0..1	None
normativeReference	_0..*	None	Provides a way to reference information that is an authoritative source providing a standard definition
symbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
ucumCode	_0..*	None	ucumCode associates a QUDT unit with its UCUM code (case-sensitive). In SHACL the values are derived from specific ucum properties using 'sh:values'.
guidance	_0..*	string

Parents¶

Quantity

Referenced by:¶

PhysicalConstant : exactMatch _0..*
SystemOfUnits : applicablePhysicalConstant _0..*

PlaneAngleUnit¶

YAML Definition¶

Click to expand

PlaneAngleUnit:
  is_a: AngleUnit
  slots:
  - Verifiable_isoNormativeReference
  - Verifiable_normativeReference
  - Verifiable_wikidataMatch
  - Verifiable_dbpediaMatch
  - hasReciprocalUnit
  - isUnitOfSystem
  - omUnit
  - unitFor
  - Unit_applicableSystem
  - Unit_definedUnitOfSystem
  - Unit_derivedCoherentUnitOfSystem
  - Unit_derivedUnitOfSystem
  - Unit_exactMatch
  - Unit_hasDimensionVector
  - Unit_hasFactorUnit
  - Unit_hasQuantityKind
  - Unit_iec61360Code
  - Unit_prefix
  - Unit_qkdvDenominator
  - Unit_qkdvNumerator
  - Unit_scalingOf
  - Unit_ucumCode
  - Unit_udunitsCode
  - Unit_uneceCommonCode
  - Unit_altSymbol
  - Unit_latexDefinition
  - Unit_latexSymbol
  - Unit_siUnitsExpression
  - Unit_symbol
  - Unit_conversionMultiplier
  - Unit_conversionMultiplierSN
  - Unit_conversionOffset
  - Unit_conversionOffsetSN
  - Unit_factorUnitScalar
  - Unit_mathMLdefinition
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription

class_planeangleunit_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
altSymbol	_0..*	None	An alternative symbol
applicableSystem	_0..*	SystemOfUnits	This property relates a unit of measure with a unit system that may or may not define the unit, but within which the unit is compatible.
conversionMultiplier	_0..1	None
conversionMultiplierSN	_0..1	None
conversionOffset	_0..1	None
conversionOffsetSN	_0..1	None
dbpediaMatch	_0..*	uri
definedUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure with the unit system that defines the unit.
derivedCoherentUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure to the unit system in which the unit is derived from the system's base units with a proportionality constant of one.
derivedUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure to the system of units in which it is defined as a derived unit. That is, the derived unit is defined as a product of the base units for the system raised to some rational power.
exactMatch	_0..*	Unit
factorUnitScalar	_0..1	None	For a derived unit that is not exactly the product of its factor units, this property defines the scalar with which that product has to be multiplied with.
hasDimensionVector	_0..1	QuantityKindDimensionVector
hasFactorUnit	_0..*	Class	This property relates a derived unit to one of its constituent factor units
hasQuantityKind	_0..*	QuantityKind
hasReciprocalUnit	_0..*	Unit
iec61360Code	_0..*	string
isUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure with a system of units that either a) defines the unit or b) allows the unit to be used within the system.
isoNormativeReference	_0..*	None	Provides a way to reference the ISO unit definition.
latexDefinition	_0..*	None
latexSymbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
mathMLdefinition	_0..1	None
normativeReference	_0..*	None	Provides a way to reference information that is an authoritative source providing a standard definition
omUnit	_0..*	None
prefix	_0..*	Prefix
qkdvDenominator	_0..1	QuantityKindDimensionVector
qkdvNumerator	_0..1	QuantityKindDimensionVector
scalingOf	_0..*	Unit	This property relates a unit to another unit it is scaled from
siUnitsExpression	_0..*	None
symbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
ucumCode	_0..*	UCUMcs	ucumCode associates a QUDT unit with its UCUM code (case-sensitive). In SHACL the values are derived from specific ucum properties using 'sh:values'.
udunitsCode	_0..*	string	The UDUNITS package supports units of physical quantities. Its C library provides for arithmetic manipulation of units and for conversion of numeric values between compatible units. The package contains an extensive unit database, which is in XML format and user-extendable. The package also contains a command-line utility for investigating units and converting values.
uneceCommonCode	_0..*	string	The UN/CEFACT Recommendation 20 provides three character alphabetic and alphanumeric codes for representing units of measurement for length, area, volume/capacity, mass (weight), time, and other quantities used in international trade. The codes are intended for use in manual and/or automated systems for the exchange of information between participants in international trade.
unitFor	_0..*	None
wikidataMatch	_0..*	uri
guidance	_0..*	string

Parents¶

AngleUnit

Prefix¶

YAML Definition¶

Click to expand

Prefix:
  is_a: Verifiable
  mixins:
  - Concept
  slots:
  - Verifiable_isoNormativeReference
  - Verifiable_normativeReference
  - Verifiable_wikidataMatch
  - Verifiable_dbpediaMatch
  - Prefix_exactMatch
  - Prefix_ucumCode
  - Prefix_altSymbol
  - Prefix_latexSymbol
  - Prefix_symbol
  - Prefix_prefixMultiplier
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  slot_usage:
    exactMatch:
      range: Prefix
    ucumCode:
      range: UCUMcs-term
    altSymbol:
      required: false
    latexSymbol:
      required: false
    symbol:
      required: false
    prefixMultiplier:
      multivalued: false

class_prefix_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
dbpediaMatch	_0..*	uri
isoNormativeReference	_0..*	None	Provides a way to reference the ISO unit definition.
normativeReference	_0..*	None	Provides a way to reference information that is an authoritative source providing a standard definition
wikidataMatch	_0..*	uri
guidance	_0..*	string
altSymbol	_0..*	None	An alternative symbol
exactMatch	_0..*	Prefix
latexSymbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
prefixMultiplier	_0..1	None
symbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
ucumCode	_0..*	UCUMcs-term	ucumCode associates a QUDT unit with its UCUM code (case-sensitive). In SHACL the values are derived from specific ucum properties using 'sh:values'.

Parents¶

Verifiable

Children¶

BinaryPrefix
DecimalPrefix

Uses¶

mixin: Concept

Referenced by:¶

Prefix : exactMatch _0..*
SystemOfUnits : prefix _0..*
Unit : prefix _0..*

Quantifiable¶

Quantifiable ascribes to some thing the capability of being measured, observed, or counted.

YAML Definition¶

Click to expand

Quantifiable:
  is_a: Aspect
  slots:
  - Quantifiable_dataEncoding
  - Quantifiable_datatype
  - Quantifiable_hasUnit
  - Quantifiable_relativeStandardUncertainty
  - Quantifiable_standardUncertainty
  - Quantifiable_standardUncertaintySN
  - Quantifiable_value
  - Quantifiable_valueSN
  slot_usage:
    dataEncoding:
      range: DataEncoding
      multivalued: false
    datatype:
      range: Datatype
      multivalued: false
    hasUnit:
      range: Unit
      multivalued: false
    relativeStandardUncertainty:
      range: double
      multivalued: false
    standardUncertainty:
      range: decimal
      multivalued: false
    standardUncertaintySN:
      range: double
    value:
      multivalued: false
    valueSN:
      multivalued: false

class_quantifiable_erd

Attributes¶

Name	Cardinality:	Type	Description
dataEncoding	_0..1	DataEncoding
datatype	_0..1	Datatype
hasUnit	_0..1	Unit	This property relates a factor unit to its unit or a system of units with a unit of measure that is either a) defined by the system, or b) accepted for use by the system and is convertible to a unit of equivalent dimension that is defined by the system. Systems of units may distinguish between base and derived units. Base units are the units which measure the base quantities for the corresponding system of quantities. The base units are used to define units for all other quantities as products of powers of the base units. Such units are called derived units for the system.
relativeStandardUncertainty	_0..1	double	The relative standard uncertainty of a measurement is the (absolute) standard uncertainty divided by the magnitude of the exact value.
standardUncertainty	_0..1	decimal	The standard uncertainty of a quantity is the estimated standard deviation of the mean taken from a series of measurements.
standardUncertaintySN	_0..*	double	The standard uncertainty of a quantity is the estimated standard deviation of the mean taken from a series of measurements.
value	_0..1	None	A property to relate an observable thing with a value of any kind
valueSN	_0..1	None	A property to relate an observable thing with a value of any kind

Parents¶

Aspect

Children¶

Quantity
QuantityValue

Quantity¶

A quantity is the measurement of an observable property of a particular object, event, or physical system. A quantity is always associated with the context of measurement (i.e. the thing measured, the measured value, the accuracy of measurement, etc.) whereas the underlying quantity kind is independent of any particular measurement. Thus, length is a quantity kind while the height of a rocket is a specific quantity of length; its magnitude that may be expressed in meters, feet, inches, etc. Examples of physical quantities include physical constants, such as the speed of light in a vacuum, Planck's constant, the electric permittivity of free space, and the fine structure constant.

In other words, quantities are quantifiable aspects of the world, such as the duration of a movie, the distance between two points, velocity of a car, the pressure of the atmosphere, and a person's weight; and units are used to describe their numerical measure.

Many quantity kinds are related to each other by various physical laws, and as a result, the associated units of some quantity kinds can be expressed as products (or ratios) of powers of other quantity kinds (e.g., momentum is mass times velocity and velocity is defined as distance divided by time). In this way, some quantities can be calculated from other measured quantities using their associations to the quantity kinds in these expressions. These quantity kind relationships are also discussed in dimensional analysis. Those that cannot be so expressed can be regarded as \"fundamental\" in this sense.

A quantity is distinguished from a \"quantity kind\" in that the former carries a value and the latter is a type specifier.

YAML Definition¶

Click to expand

Quantity:
  is_a: Quantifiable
  mixins:
  - Concept
  slots:
  - Quantifiable_dataEncoding
  - Quantifiable_datatype
  - Quantifiable_hasUnit
  - Quantifiable_relativeStandardUncertainty
  - Quantifiable_standardUncertainty
  - Quantifiable_standardUncertaintySN
  - Quantifiable_value
  - Quantifiable_valueSN
  - Quantity_hasQuantityKind
  - Quantity_quantityValue
  - Quantity_isDeltaQuantity
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  slot_usage:
    hasQuantityKind:
      range: QuantityKind
      required: false
    quantityValue:
      range: QuantityValue
    isDeltaQuantity:
      range: boolean

class_quantity_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
dataEncoding	_0..1	DataEncoding
datatype	_0..1	Datatype
hasUnit	_0..1	Unit	This property relates a factor unit to its unit or a system of units with a unit of measure that is either a) defined by the system, or b) accepted for use by the system and is convertible to a unit of equivalent dimension that is defined by the system. Systems of units may distinguish between base and derived units. Base units are the units which measure the base quantities for the corresponding system of quantities. The base units are used to define units for all other quantities as products of powers of the base units. Such units are called derived units for the system.
relativeStandardUncertainty	_0..1	double	The relative standard uncertainty of a measurement is the (absolute) standard uncertainty divided by the magnitude of the exact value.
standardUncertainty	_0..1	decimal	The standard uncertainty of a quantity is the estimated standard deviation of the mean taken from a series of measurements.
standardUncertaintySN	_0..*	double	The standard uncertainty of a quantity is the estimated standard deviation of the mean taken from a series of measurements.
value	_0..1	None	A property to relate an observable thing with a value of any kind
valueSN	_0..1	None	A property to relate an observable thing with a value of any kind
guidance	_0..*	string
hasQuantityKind	_0..*	QuantityKind
isDeltaQuantity	_0..*	boolean
quantityValue	_0..*	QuantityValue

Parents¶

Quantifiable

Children¶

PhysicalConstant

Uses¶

mixin: Concept

Referenced by:¶

QuantityKind¶

A Quantity Kind is any observable property that can be measured and quantified numerically. Familiar examples include physical properties such as length, mass, time, force, energy, power, electric charge, etc. Less familiar examples include currency, interest rate, price to earning ratio, and information capacity.

YAML Definition¶

Click to expand

QuantityKind:
  is_a: Verifiable
  mixins:
  - AbstractQuantityKind
  slots:
  - Verifiable_isoNormativeReference
  - Verifiable_normativeReference
  - Verifiable_wikidataMatch
  - Verifiable_dbpediaMatch
  - belongsToSystemOfQuantities
  - QuantityKind_dimensionVectorForSI
  - QuantityKind_exactMatch
  - QuantityKind_hasDimensionVector
  - QuantityKind_iec61360Code
  - QuantityKind_applicableCGSUnit
  - QuantityKind_applicableISOUnit
  - QuantityKind_applicableImperialUnit
  - QuantityKind_applicableSIUnit
  - QuantityKind_applicableUSCustomaryUnit
  - QuantityKind_applicableUnit
  - QuantityKind_qkdvDenominator
  - QuantityKind_qkdvNumerator
  - QuantityKind_latexDefinition
  - QuantityKind_mathMLdefinition
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - AbstractQuantityKind_broader
  - AbstractQuantityKind_altSymbol
  - AbstractQuantityKind_latexSymbol
  - AbstractQuantityKind_symbol
  slot_usage:
    dimensionVectorForSI:
      range: QuantityKindDimensionVector_SI
      multivalued: false
    exactMatch:
      range: QuantityKind
    hasDimensionVector:
      range: QuantityKindDimensionVector
    iec61360Code:
      range: string
    applicableCGSUnit:
      required: false
    applicableISOUnit:
      required: false
    applicableImperialUnit:
      required: false
    applicableSIUnit:
      required: false
    applicableUSCustomaryUnit:
      required: false
    applicableUnit:
      required: false
    qkdvDenominator:
      multivalued: false
    qkdvNumerator:
      multivalued: false
    latexDefinition:
      multivalued: false
    mathMLdefinition:
      multivalued: false

class_quantitykind_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
dbpediaMatch	_0..*	uri
isoNormativeReference	_0..*	None	Provides a way to reference the ISO unit definition.
normativeReference	_0..*	None	Provides a way to reference information that is an authoritative source providing a standard definition
wikidataMatch	_0..*	uri
applicableCGSUnit	_0..*	Unit
applicableISOUnit	_0..*	Unit
applicableImperialUnit	_0..*	Unit
applicableSIUnit	_0..*	Unit
applicableUSCustomaryUnit	_0..*	Unit
applicableUnit	_0..*	Unit	See https://github.com/qudt/qudt-public-repo/wiki/Advanced-User-Guide#4-computing-applicable-units-for-a-quantitykind on how `qudt:applicableUnit` is computed from `qudt:hasQuantityKind` and then materialized
belongsToSystemOfQuantities	_0..*	SystemOfQuantityKinds
dimensionVectorForSI	_0..1	QuantityKindDimensionVectorSI
exactMatch	_0..*	QuantityKind
hasDimensionVector	_0..*	QuantityKindDimensionVector
iec61360Code	_0..*	string
latexDefinition	_0..1	None
mathMLdefinition	_0..1	None
qkdvDenominator	_0..1	QuantityKindDimensionVector
qkdvNumerator	_0..1	QuantityKindDimensionVector
guidance	_0..*	string

Parents¶

Verifiable

Uses¶

mixin: AbstractQuantityKind

Referenced by:¶

AbstractQuantityKind : broader _0..1
BaseDimensionMagnitude : hasBaseQuantityKind _1..*
QuantityKindDimensionVector : hasReferenceQuantityKind _0..*
QuantityKind : exactMatch _0..*
QuantityType : value _0..*
Quantity : hasQuantityKind _0..*
SystemOfQuantityKinds : hasBaseQuantityKind _0..*
SystemOfQuantityKinds : hasQuantityKind _0..*
SystemOfQuantityKinds : systemDerivedQuantityKind _0..*
Unit : hasQuantityKind _0..*
UserQuantityKind : hasQuantityKind _1..*

QuantityKindDimensionVector¶

A Quantity Kind Dimension Vector describes the dimensionality of a quantity kind in the context of a system of units. In the SI system of units, the dimensions of a quantity kind are expressed as a product of the basic physical dimensions mass ($M$), length ($L$), time ($T$) current ($I$), amount of substance ($N$), luminous intensity ($J$) and absolute temperature ($\\theta$) as $dim \\, Q = L^{\\alpha} \\, M^{\\beta} \\, T^{\\gamma} \\, I ^{\\delta} \\, \\theta ^{\\epsilon} \\ , N^{\\eta} \\, J ^{\\nu}$.

The rational powers of the dimensional exponents, $\\alpha, \\, \\beta, \\, \\gamma, \\, \\delta, \\, \\epsilon, \\, \\eta, \\, \\nu$, are positive, negative, or zero.

For example, the dimension of the physical quantity kind $\\it{speed}$ is $\\boxed{length/time}$, $L/T$ or $LT^{-1}$, and the dimension of the physical quantity kind force is $\\boxed{mass \\times acceleration}$ or $\\boxed{mass \\times (length/time)/time}$, $ML/T^2$ or $MLT^{-2}$ respectively.

YAML Definition¶

Click to expand

QuantityKindDimensionVector:
  is_a: Concept
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - QuantityKindDimensionVector_hasReferenceQuantityKind
  - QuantityKindDimensionVector_latexSymbol
  - QuantityKindDimensionVector_dimensionExponentForAmountOfSubstance
  - QuantityKindDimensionVector_dimensionExponentForElectricCurrent
  - QuantityKindDimensionVector_dimensionExponentForLength
  - QuantityKindDimensionVector_dimensionExponentForLuminousIntensity
  - QuantityKindDimensionVector_dimensionExponentForMass
  - QuantityKindDimensionVector_dimensionExponentForThermodynamicTemperature
  - QuantityKindDimensionVector_dimensionExponentForTime
  - QuantityKindDimensionVector_dimensionlessExponent
  - QuantityKindDimensionVector_latexDefinition
  slot_usage:
    hasReferenceQuantityKind:
      range: QuantityKind
    latexSymbol:
      required: false
    dimensionExponentForAmountOfSubstance:
      required: true
      multivalued: false
    dimensionExponentForElectricCurrent:
      required: true
      multivalued: false
    dimensionExponentForLength:
      required: true
      multivalued: false
    dimensionExponentForLuminousIntensity:
      required: true
      multivalued: false
    dimensionExponentForMass:
      required: true
      multivalued: false
    dimensionExponentForThermodynamicTemperature:
      required: true
      multivalued: false
    dimensionExponentForTime:
      required: true
      multivalued: false
    dimensionlessExponent:
      required: true
      multivalued: false
    latexDefinition:
      multivalued: false

class_quantitykinddimensionvector_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
deprecated	_0..1	None
guidance	_0..*	string
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.
dimensionExponentForAmountOfSubstance	_1..1	None
dimensionExponentForElectricCurrent	_1..1	None
dimensionExponentForLength	_1..1	None
dimensionExponentForLuminousIntensity	_1..1	None
dimensionExponentForMass	_1..1	None
dimensionExponentForThermodynamicTemperature	_1..1	None
dimensionExponentForTime	_1..1	None
dimensionlessExponent	_1..1	None
hasReferenceQuantityKind	_0..*	QuantityKind
latexDefinition	_0..1	None
latexSymbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.

Parents¶

Concept

Children¶

QuantityKindDimensionVectorCGS
QuantityKindDimensionVectorISO
QuantityKindDimensionVectorImperial
QuantityKindDimensionVectorSI

Referenced by:¶

PhysicalConstant : hasDimensionVector _0..*
QuantityKind : hasDimensionVector _0..*
QuantityKind : qkdvDenominator _0..*
QuantityKind : qkdvNumerator _0..*
Unit : hasDimensionVector _0..*
Unit : qkdvDenominator _0..*
Unit : qkdvNumerator _0..*

QuantityKindDimensionVectorCGS¶

A CGS Dimension Vector is used to specify the dimensions for a C.G.S. quantity kind.

YAML Definition¶

Click to expand

QuantityKindDimensionVector_CGS:
  is_a: QuantityKindDimensionVector
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - QuantityKindDimensionVector_hasReferenceQuantityKind
  - QuantityKindDimensionVector_latexSymbol
  - QuantityKindDimensionVector_dimensionExponentForAmountOfSubstance
  - QuantityKindDimensionVector_dimensionExponentForElectricCurrent
  - QuantityKindDimensionVector_dimensionExponentForLength
  - QuantityKindDimensionVector_dimensionExponentForLuminousIntensity
  - QuantityKindDimensionVector_dimensionExponentForMass
  - QuantityKindDimensionVector_dimensionExponentForThermodynamicTemperature
  - QuantityKindDimensionVector_dimensionExponentForTime
  - QuantityKindDimensionVector_dimensionlessExponent
  - QuantityKindDimensionVector_latexDefinition

class_quantitykinddimensionvector_cgs_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
deprecated	_0..1	None
dimensionExponentForAmountOfSubstance	_1..1	None
dimensionExponentForElectricCurrent	_1..1	None
dimensionExponentForLength	_1..1	None
dimensionExponentForLuminousIntensity	_1..1	None
dimensionExponentForMass	_1..1	None
dimensionExponentForThermodynamicTemperature	_1..1	None
dimensionExponentForTime	_1..1	None
dimensionlessExponent	_1..1	None
guidance	_0..*	string
hasReferenceQuantityKind	_0..*	QuantityKind
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
latexDefinition	_0..1	None
latexSymbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.

Parents¶

QuantityKindDimensionVector

Children¶

QuantityKindDimensionVectorCGS-EMU
QuantityKindDimensionVectorCGS-ESU
QuantityKindDimensionVectorCGS-GAUSS
QuantityKindDimensionVectorCGS-LH

QuantityKindDimensionVectorCGS-EMU¶

A CGS EMU Dimension Vector is used to specify the dimensions for EMU C.G.S. quantity kind.

YAML Definition¶

Click to expand

QuantityKindDimensionVector_CGS-EMU:
  is_a: QuantityKindDimensionVector_CGS
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - QuantityKindDimensionVector_hasReferenceQuantityKind
  - QuantityKindDimensionVector_latexSymbol
  - QuantityKindDimensionVector_dimensionExponentForAmountOfSubstance
  - QuantityKindDimensionVector_dimensionExponentForElectricCurrent
  - QuantityKindDimensionVector_dimensionExponentForLength
  - QuantityKindDimensionVector_dimensionExponentForLuminousIntensity
  - QuantityKindDimensionVector_dimensionExponentForMass
  - QuantityKindDimensionVector_dimensionExponentForThermodynamicTemperature
  - QuantityKindDimensionVector_dimensionExponentForTime
  - QuantityKindDimensionVector_dimensionlessExponent
  - QuantityKindDimensionVector_latexDefinition

class_quantitykinddimensionvector_cgs-emu_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
deprecated	_0..1	None
dimensionExponentForAmountOfSubstance	_1..1	None
dimensionExponentForElectricCurrent	_1..1	None
dimensionExponentForLength	_1..1	None
dimensionExponentForLuminousIntensity	_1..1	None
dimensionExponentForMass	_1..1	None
dimensionExponentForThermodynamicTemperature	_1..1	None
dimensionExponentForTime	_1..1	None
dimensionlessExponent	_1..1	None
guidance	_0..*	string
hasReferenceQuantityKind	_0..*	QuantityKind
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
latexDefinition	_0..1	None
latexSymbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.

Parents¶

QuantityKindDimensionVectorCGS

QuantityKindDimensionVectorCGS-ESU¶

A CGS ESU Dimension Vector is used to specify the dimensions for ESU C.G.S. quantity kind.

YAML Definition¶

Click to expand

QuantityKindDimensionVector_CGS-ESU:
  is_a: QuantityKindDimensionVector_CGS
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - QuantityKindDimensionVector_hasReferenceQuantityKind
  - QuantityKindDimensionVector_latexSymbol
  - QuantityKindDimensionVector_dimensionExponentForAmountOfSubstance
  - QuantityKindDimensionVector_dimensionExponentForElectricCurrent
  - QuantityKindDimensionVector_dimensionExponentForLength
  - QuantityKindDimensionVector_dimensionExponentForLuminousIntensity
  - QuantityKindDimensionVector_dimensionExponentForMass
  - QuantityKindDimensionVector_dimensionExponentForThermodynamicTemperature
  - QuantityKindDimensionVector_dimensionExponentForTime
  - QuantityKindDimensionVector_dimensionlessExponent
  - QuantityKindDimensionVector_latexDefinition

class_quantitykinddimensionvector_cgs-esu_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
deprecated	_0..1	None
dimensionExponentForAmountOfSubstance	_1..1	None
dimensionExponentForElectricCurrent	_1..1	None
dimensionExponentForLength	_1..1	None
dimensionExponentForLuminousIntensity	_1..1	None
dimensionExponentForMass	_1..1	None
dimensionExponentForThermodynamicTemperature	_1..1	None
dimensionExponentForTime	_1..1	None
dimensionlessExponent	_1..1	None
guidance	_0..*	string
hasReferenceQuantityKind	_0..*	QuantityKind
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
latexDefinition	_0..1	None
latexSymbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.

Parents¶

QuantityKindDimensionVectorCGS

QuantityKindDimensionVectorCGS-GAUSS¶

A CGS GAUSS Dimension Vector is used to specify the dimensions for Gaussioan C.G.S. quantity kind.

YAML Definition¶

Click to expand

QuantityKindDimensionVector_CGS-GAUSS:
  is_a: QuantityKindDimensionVector_CGS
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - QuantityKindDimensionVector_hasReferenceQuantityKind
  - QuantityKindDimensionVector_latexSymbol
  - QuantityKindDimensionVector_dimensionExponentForAmountOfSubstance
  - QuantityKindDimensionVector_dimensionExponentForElectricCurrent
  - QuantityKindDimensionVector_dimensionExponentForLength
  - QuantityKindDimensionVector_dimensionExponentForLuminousIntensity
  - QuantityKindDimensionVector_dimensionExponentForMass
  - QuantityKindDimensionVector_dimensionExponentForThermodynamicTemperature
  - QuantityKindDimensionVector_dimensionExponentForTime
  - QuantityKindDimensionVector_dimensionlessExponent
  - QuantityKindDimensionVector_latexDefinition

class_quantitykinddimensionvector_cgs-gauss_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
deprecated	_0..1	None
dimensionExponentForAmountOfSubstance	_1..1	None
dimensionExponentForElectricCurrent	_1..1	None
dimensionExponentForLength	_1..1	None
dimensionExponentForLuminousIntensity	_1..1	None
dimensionExponentForMass	_1..1	None
dimensionExponentForThermodynamicTemperature	_1..1	None
dimensionExponentForTime	_1..1	None
dimensionlessExponent	_1..1	None
guidance	_0..*	string
hasReferenceQuantityKind	_0..*	QuantityKind
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
latexDefinition	_0..1	None
latexSymbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.

Parents¶

QuantityKindDimensionVectorCGS

QuantityKindDimensionVectorCGS-LH¶

A CGS LH Dimension Vector is used to specify the dimensions for Lorentz-Heaviside C.G.S. quantity kind.

YAML Definition¶

Click to expand

QuantityKindDimensionVector_CGS-LH:
  is_a: QuantityKindDimensionVector_CGS
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - QuantityKindDimensionVector_hasReferenceQuantityKind
  - QuantityKindDimensionVector_latexSymbol
  - QuantityKindDimensionVector_dimensionExponentForAmountOfSubstance
  - QuantityKindDimensionVector_dimensionExponentForElectricCurrent
  - QuantityKindDimensionVector_dimensionExponentForLength
  - QuantityKindDimensionVector_dimensionExponentForLuminousIntensity
  - QuantityKindDimensionVector_dimensionExponentForMass
  - QuantityKindDimensionVector_dimensionExponentForThermodynamicTemperature
  - QuantityKindDimensionVector_dimensionExponentForTime
  - QuantityKindDimensionVector_dimensionlessExponent
  - QuantityKindDimensionVector_latexDefinition

class_quantitykinddimensionvector_cgs-lh_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
deprecated	_0..1	None
dimensionExponentForAmountOfSubstance	_1..1	None
dimensionExponentForElectricCurrent	_1..1	None
dimensionExponentForLength	_1..1	None
dimensionExponentForLuminousIntensity	_1..1	None
dimensionExponentForMass	_1..1	None
dimensionExponentForThermodynamicTemperature	_1..1	None
dimensionExponentForTime	_1..1	None
dimensionlessExponent	_1..1	None
guidance	_0..*	string
hasReferenceQuantityKind	_0..*	QuantityKind
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
latexDefinition	_0..1	None
latexSymbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.

Parents¶

QuantityKindDimensionVectorCGS

QuantityKindDimensionVectorISO¶

YAML Definition¶

Click to expand

QuantityKindDimensionVector_ISO:
  is_a: QuantityKindDimensionVector
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - QuantityKindDimensionVector_hasReferenceQuantityKind
  - QuantityKindDimensionVector_latexSymbol
  - QuantityKindDimensionVector_dimensionExponentForAmountOfSubstance
  - QuantityKindDimensionVector_dimensionExponentForElectricCurrent
  - QuantityKindDimensionVector_dimensionExponentForLength
  - QuantityKindDimensionVector_dimensionExponentForLuminousIntensity
  - QuantityKindDimensionVector_dimensionExponentForMass
  - QuantityKindDimensionVector_dimensionExponentForThermodynamicTemperature
  - QuantityKindDimensionVector_dimensionExponentForTime
  - QuantityKindDimensionVector_dimensionlessExponent
  - QuantityKindDimensionVector_latexDefinition

class_quantitykinddimensionvector_iso_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
deprecated	_0..1	None
dimensionExponentForAmountOfSubstance	_1..1	None
dimensionExponentForElectricCurrent	_1..1	None
dimensionExponentForLength	_1..1	None
dimensionExponentForLuminousIntensity	_1..1	None
dimensionExponentForMass	_1..1	None
dimensionExponentForThermodynamicTemperature	_1..1	None
dimensionExponentForTime	_1..1	None
dimensionlessExponent	_1..1	None
guidance	_0..*	string
hasReferenceQuantityKind	_0..*	QuantityKind
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
latexDefinition	_0..1	None
latexSymbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.

Parents¶

QuantityKindDimensionVector

QuantityKindDimensionVectorImperial¶

YAML Definition¶

Click to expand

QuantityKindDimensionVector_Imperial:
  is_a: QuantityKindDimensionVector
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - QuantityKindDimensionVector_hasReferenceQuantityKind
  - QuantityKindDimensionVector_latexSymbol
  - QuantityKindDimensionVector_dimensionExponentForAmountOfSubstance
  - QuantityKindDimensionVector_dimensionExponentForElectricCurrent
  - QuantityKindDimensionVector_dimensionExponentForLength
  - QuantityKindDimensionVector_dimensionExponentForLuminousIntensity
  - QuantityKindDimensionVector_dimensionExponentForMass
  - QuantityKindDimensionVector_dimensionExponentForThermodynamicTemperature
  - QuantityKindDimensionVector_dimensionExponentForTime
  - QuantityKindDimensionVector_dimensionlessExponent
  - QuantityKindDimensionVector_latexDefinition

class_quantitykinddimensionvector_imperial_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
deprecated	_0..1	None
dimensionExponentForAmountOfSubstance	_1..1	None
dimensionExponentForElectricCurrent	_1..1	None
dimensionExponentForLength	_1..1	None
dimensionExponentForLuminousIntensity	_1..1	None
dimensionExponentForMass	_1..1	None
dimensionExponentForThermodynamicTemperature	_1..1	None
dimensionExponentForTime	_1..1	None
dimensionlessExponent	_1..1	None
guidance	_0..*	string
hasReferenceQuantityKind	_0..*	QuantityKind
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
latexDefinition	_0..1	None
latexSymbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.

Parents¶

QuantityKindDimensionVector

QuantityKindDimensionVectorSI¶

YAML Definition¶

Click to expand

QuantityKindDimensionVector_SI:
  is_a: QuantityKindDimensionVector
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - QuantityKindDimensionVector_hasReferenceQuantityKind
  - QuantityKindDimensionVector_latexSymbol
  - QuantityKindDimensionVector_dimensionExponentForAmountOfSubstance
  - QuantityKindDimensionVector_dimensionExponentForElectricCurrent
  - QuantityKindDimensionVector_dimensionExponentForLength
  - QuantityKindDimensionVector_dimensionExponentForLuminousIntensity
  - QuantityKindDimensionVector_dimensionExponentForMass
  - QuantityKindDimensionVector_dimensionExponentForThermodynamicTemperature
  - QuantityKindDimensionVector_dimensionExponentForTime
  - QuantityKindDimensionVector_dimensionlessExponent
  - QuantityKindDimensionVector_latexDefinition

class_quantitykinddimensionvector_si_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
deprecated	_0..1	None
dimensionExponentForAmountOfSubstance	_1..1	None
dimensionExponentForElectricCurrent	_1..1	None
dimensionExponentForLength	_1..1	None
dimensionExponentForLuminousIntensity	_1..1	None
dimensionExponentForMass	_1..1	None
dimensionExponentForThermodynamicTemperature	_1..1	None
dimensionExponentForTime	_1..1	None
dimensionlessExponent	_1..1	None
guidance	_0..*	string
hasReferenceQuantityKind	_0..*	QuantityKind
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
latexDefinition	_0..1	None
latexSymbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.

Parents¶

QuantityKindDimensionVector

Referenced by:¶

QuantityKind : dimensionVectorForSI _0..*

QuantityType¶

YAML Definition¶

Click to expand

QuantityType:
  is_a: EnumeratedValue
  slots:
  - Verifiable_isoNormativeReference
  - Verifiable_normativeReference
  - Verifiable_wikidataMatch
  - Verifiable_dbpediaMatch
  - EnumeratedValue_altSymbol
  - EnumeratedValue_description
  - EnumeratedValue_abbreviation
  - EnumeratedValue_symbol
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_deprecated
  - Concept_plainTextDescription
  - QuantityType_value
  slot_usage:
    value:
      range: QuantityKind

class_quantitytype_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
altSymbol	_0..*	None	An alternative symbol
dbpediaMatch	_0..*	uri
isoNormativeReference	_0..*	None	Provides a way to reference the ISO unit definition.
normativeReference	_0..*	None	Provides a way to reference information that is an authoritative source providing a standard definition
symbol	_0..1	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
wikidataMatch	_0..*	uri
value	_0..*	QuantityKind	A property to relate an observable thing with a value of any kind
guidance	_0..*	string

Parents¶

EnumeratedValue

QuantityValue¶

A Quantity Value expresses the magnitude and kind of a quantity and is given by the product of a numerical value n and a unit of measure U. The number multiplying the unit is referred to as the numerical value of the quantity expressed in that unit. Refer to NIST SP 811 section 7 for more on quantity values.

YAML Definition¶

Click to expand

QuantityValue:
  is_a: Quantifiable
  mixins:
  - Concept
  slots:
  - Quantifiable_dataEncoding
  - Quantifiable_datatype
  - Quantifiable_relativeStandardUncertainty
  - Quantifiable_standardUncertainty
  - Quantifiable_standardUncertaintySN
  - Quantifiable_value
  - Quantifiable_valueSN
  - QuantityValue_hasUnit
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  slot_usage:
    hasUnit:
      multivalued: false

class_quantityvalue_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
dataEncoding	_0..1	DataEncoding
datatype	_0..1	Datatype
relativeStandardUncertainty	_0..1	double	The relative standard uncertainty of a measurement is the (absolute) standard uncertainty divided by the magnitude of the exact value.
standardUncertainty	_0..1	decimal	The standard uncertainty of a quantity is the estimated standard deviation of the mean taken from a series of measurements.
standardUncertaintySN	_0..*	double	The standard uncertainty of a quantity is the estimated standard deviation of the mean taken from a series of measurements.
value	_0..1	None	A property to relate an observable thing with a value of any kind
valueSN	_0..1	None	A property to relate an observable thing with a value of any kind
guidance	_0..*	string
hasUnit	_0..1	Unit	This property relates a factor unit to its unit or a system of units with a unit of measure that is either a) defined by the system, or b) accepted for use by the system and is convertible to a unit of equivalent dimension that is defined by the system. Systems of units may distinguish between base and derived units. Base units are the units which measure the base quantities for the corresponding system of quantities. The base units are used to define units for all other quantities as products of powers of the base units. Such units are called derived units for the system.

Parents¶

Quantifiable

Children¶

ConstantValue

Uses¶

mixin: Concept

Referenced by:¶

Quantity : quantityValue _0..*

RatioScale¶

The ratio type takes its name from the fact that measurement is the estimation of the ratio between a magnitude of a continuous quantity and a unit magnitude of the same kind (Michell, 1997, 1999). A ratio scale possesses a meaningful (unique and non-arbitrary) zero value. Most measurement in the physical sciences and engineering is done on ratio scales. Examples include mass, length, duration, plane angle, energy and electric charge. In contrast to interval scales, ratios are now meaningful because having a non-arbitrary zero point makes it meaningful to say, for example, that one object has \"twice the length\" of another (= is \"twice as long\"). Very informally, many ratio scales can be described as specifying \"how much\" of something (i.e. an amount or magnitude) or \"how many\" (a count). The Kelvin temperature scale is a ratio scale because it has a unique, non-arbitrary zero point called absolute zero.

YAML Definition¶

Click to expand

RatioScale:
  is_a: Scale
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - Scale_permissibleMaths
  - Scale_permissibleTransformation
  - Scale_scaleType
  - Scale_dataStructure

class_ratioscale_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
dataStructure	_0..1	None
deprecated	_0..1	None
guidance	_0..*	string
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
permissibleMaths	_0..*	MathsFunctionType
permissibleTransformation	_0..*	TransformType
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.
scaleType	_0..1	ScaleType

Parents¶

Scale

Resource¶

YAML Definition¶

Click to expand

Resource: {}

Local class diagram¶

class_resource_local

This class has no attributes

Children¶

UCUMcs
UCUMcs-term
ValueUnion

Rule¶

YAML Definition¶

Click to expand

Rule:
  is_a: Verifiable
  mixins:
  - Concept
  slots:
  - Verifiable_isoNormativeReference
  - Verifiable_normativeReference
  - Verifiable_wikidataMatch
  - Verifiable_dbpediaMatch
  - Rule_ruleType
  - Rule_rationale
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  slot_usage:
    ruleType:
      range: RuleType
    rationale:
      required: false

class_rule_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
dbpediaMatch	_0..*	uri
isoNormativeReference	_0..*	None	Provides a way to reference the ISO unit definition.
normativeReference	_0..*	None	Provides a way to reference information that is an authoritative source providing a standard definition
wikidataMatch	_0..*	uri
guidance	_0..*	string
rationale	_0..*	string
ruleType	_0..*	RuleType

Parents¶

Verifiable

Uses¶

mixin: Concept

Referenced by:¶

Concept : hasRule _0..*

RuleType¶

YAML Definition¶

Click to expand

RuleType:
  is_a: EnumeratedValue
  slots:
  - Verifiable_isoNormativeReference
  - Verifiable_normativeReference
  - Verifiable_wikidataMatch
  - Verifiable_dbpediaMatch
  - EnumeratedValue_altSymbol
  - EnumeratedValue_description
  - EnumeratedValue_abbreviation
  - EnumeratedValue_symbol
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_deprecated
  - Concept_plainTextDescription

class_ruletype_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
altSymbol	_0..*	None	An alternative symbol
dbpediaMatch	_0..*	uri
isoNormativeReference	_0..*	None	Provides a way to reference the ISO unit definition.
normativeReference	_0..*	None	Provides a way to reference information that is an authoritative source providing a standard definition
symbol	_0..1	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
wikidataMatch	_0..*	uri
guidance	_0..*	string

Parents¶

EnumeratedValue

Referenced by:¶

Rule : ruleType _0..*

ScalarDatatype¶

YAML Definition¶

Click to expand

ScalarDatatype:
  is_a: Datatype
  slots:
  - guidance
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - Datatype_basis
  - Datatype_cardinality
  - Datatype_orderedType
  - Datatype_ansiSQLName
  - Datatype_cName
  - Datatype_oracleSQLName
  - Datatype_protocolBuffersName
  - Datatype_pythonName
  - Datatype_vbName
  - Datatype_bounded
  - Datatype_id
  - Datatype_javaName
  - Datatype_jsName
  - Datatype_matlabName
  - Datatype_microsoftSQLServerName
  - Datatype_mySQLName
  - Datatype_odbcName
  - Datatype_oleDBName
  - ScalarDatatype_rdfsDatatype
  - ScalarDatatype_bits
  - ScalarDatatype_bytes
  - ScalarDatatype_length
  - ScalarDatatype_maxExclusive
  - ScalarDatatype_maxInclusive
  - ScalarDatatype_minExclusive
  - ScalarDatatype_minInclusive
  slot_usage:
    rdfsDatatype:
      range: Datatype
      multivalued: false
    bits:
      multivalued: false
    bytes:
      multivalued: false
    length:
      multivalued: false
    maxExclusive:
      multivalued: false
    maxInclusive:
      multivalued: false
    minExclusive:
      multivalued: false
    minInclusive:
      multivalued: false

class_scalardatatype_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
ansiSQLName	_0..1	string
basis	_0..1	Datatype
bounded	_0..1	None
cName	_0..1	string
cardinality	_0..1	CardinalityType
deprecated	_0..1	None
guidance	_0..*	string
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
javaName	_0..1	None
jsName	_0..1	None
matlabName	_0..1	None
microsoftSQLServerName	_0..1	None
mySQLName	_0..1	None
odbcName	_0..1	None
oleDBName	_0..1	None	OLE DB (Object Linking and Embedding, Database, sometimes written as OLEDB or OLE-DB), an API designed by Microsoft, allows accessing data from a variety of sources in a uniform manner. The API provides a set of interfaces implemented using the Component Object Model (COM); it is otherwise unrelated to OLE.
oracleSQLName	_0..1	string
orderedType	_0..1	OrderedType
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.
protocolBuffersName	_0..1	string
pythonName	_0..1	string
vbName	_0..1	string
bits	_0..1	None
bytes	_0..1	None
length	_0..1	None
maxExclusive	_0..1	None	maxExclusive is the exclusive upper bound of the value space for a datatype with the ordered property. The value of maxExclusive must be in the value space of the base type or be equal to {value} in {base type definition}.
maxInclusive	_0..1	None	maxInclusive is the inclusive upper bound of the value space for a datatype with the ordered property. The value of maxInclusive must be in the value space of the base type.
minExclusive	_0..1	None	minExclusive is the exclusive lower bound of the value space for a datatype with the ordered property. The value of minExclusive must be in the value space of the base type or be equal to {value} in {base type definition}.
minInclusive	_0..1	None	minInclusive is the inclusive lower bound of the value space for a datatype with the ordered property. The value of minInclusive must be in the value space of the base type.
rdfsDatatype	_0..1	Datatype

Parents¶

Datatype

Scale¶

Scales (also called \"scales of measurement\" or \"levels of measurement\") are expressions that typically refer to the theory of scale types.

YAML Definition¶

Click to expand

Scale:
  is_a: Concept
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - Scale_permissibleMaths
  - Scale_permissibleTransformation
  - Scale_scaleType
  - Scale_dataStructure
  slot_usage:
    permissibleMaths:
      range: MathsFunctionType
    permissibleTransformation:
      range: TransformType
    scaleType:
      range: ScaleType
      multivalued: false
    dataStructure:
      multivalued: false

class_scale_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
deprecated	_0..1	None
guidance	_0..*	string
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.
dataStructure	_0..1	None
permissibleMaths	_0..*	MathsFunctionType
permissibleTransformation	_0..*	TransformType
scaleType	_0..1	ScaleType

Parents¶

Concept

Children¶

EnumerationScale
IntervalScale
NominalScale
OrdinalScale
RatioScale

ScaleType¶

YAML Definition¶

Click to expand

ScaleType:
  is_a: EnumeratedValue
  slots:
  - Verifiable_isoNormativeReference
  - Verifiable_normativeReference
  - Verifiable_wikidataMatch
  - Verifiable_dbpediaMatch
  - EnumeratedValue_altSymbol
  - EnumeratedValue_description
  - EnumeratedValue_abbreviation
  - EnumeratedValue_symbol
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_deprecated
  - Concept_plainTextDescription
  - ScaleType_permissibleMaths
  - ScaleType_permissibleTransformation
  - ScaleType_dataStructure
  slot_usage:
    permissibleMaths:
      range: MathsFunctionType
    permissibleTransformation:
      range: TransformType
    dataStructure:
      multivalued: false

class_scaletype_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
altSymbol	_0..*	None	An alternative symbol
dbpediaMatch	_0..*	uri
isoNormativeReference	_0..*	None	Provides a way to reference the ISO unit definition.
normativeReference	_0..*	None	Provides a way to reference information that is an authoritative source providing a standard definition
symbol	_0..1	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
wikidataMatch	_0..*	uri
dataStructure	_0..1	None
permissibleMaths	_0..*	MathsFunctionType
permissibleTransformation	_0..*	TransformType
guidance	_0..*	string

Parents¶

EnumeratedValue

Referenced by:¶

Scale : scaleType _0..*

SignednessType¶

YAML Definition¶

Click to expand

SignednessType: {}

This class has no attributes

SolidAngleUnit¶

YAML Definition¶

Click to expand

SolidAngleUnit:
  is_a: AngleUnit
  slots:
  - Verifiable_isoNormativeReference
  - Verifiable_normativeReference
  - Verifiable_wikidataMatch
  - Verifiable_dbpediaMatch
  - hasReciprocalUnit
  - isUnitOfSystem
  - omUnit
  - unitFor
  - Unit_applicableSystem
  - Unit_definedUnitOfSystem
  - Unit_derivedCoherentUnitOfSystem
  - Unit_derivedUnitOfSystem
  - Unit_exactMatch
  - Unit_hasDimensionVector
  - Unit_hasFactorUnit
  - Unit_hasQuantityKind
  - Unit_iec61360Code
  - Unit_prefix
  - Unit_qkdvDenominator
  - Unit_qkdvNumerator
  - Unit_scalingOf
  - Unit_ucumCode
  - Unit_udunitsCode
  - Unit_uneceCommonCode
  - Unit_altSymbol
  - Unit_latexDefinition
  - Unit_latexSymbol
  - Unit_siUnitsExpression
  - Unit_symbol
  - Unit_conversionMultiplier
  - Unit_conversionMultiplierSN
  - Unit_conversionOffset
  - Unit_conversionOffsetSN
  - Unit_factorUnitScalar
  - Unit_mathMLdefinition
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription

class_solidangleunit_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
altSymbol	_0..*	None	An alternative symbol
applicableSystem	_0..*	SystemOfUnits	This property relates a unit of measure with a unit system that may or may not define the unit, but within which the unit is compatible.
conversionMultiplier	_0..1	None
conversionMultiplierSN	_0..1	None
conversionOffset	_0..1	None
conversionOffsetSN	_0..1	None
dbpediaMatch	_0..*	uri
definedUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure with the unit system that defines the unit.
derivedCoherentUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure to the unit system in which the unit is derived from the system's base units with a proportionality constant of one.
derivedUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure to the system of units in which it is defined as a derived unit. That is, the derived unit is defined as a product of the base units for the system raised to some rational power.
exactMatch	_0..*	Unit
factorUnitScalar	_0..1	None	For a derived unit that is not exactly the product of its factor units, this property defines the scalar with which that product has to be multiplied with.
hasDimensionVector	_0..1	QuantityKindDimensionVector
hasFactorUnit	_0..*	Class	This property relates a derived unit to one of its constituent factor units
hasQuantityKind	_0..*	QuantityKind
hasReciprocalUnit	_0..*	Unit
iec61360Code	_0..*	string
isUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure with a system of units that either a) defines the unit or b) allows the unit to be used within the system.
isoNormativeReference	_0..*	None	Provides a way to reference the ISO unit definition.
latexDefinition	_0..*	None
latexSymbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
mathMLdefinition	_0..1	None
normativeReference	_0..*	None	Provides a way to reference information that is an authoritative source providing a standard definition
omUnit	_0..*	None
prefix	_0..*	Prefix
qkdvDenominator	_0..1	QuantityKindDimensionVector
qkdvNumerator	_0..1	QuantityKindDimensionVector
scalingOf	_0..*	Unit	This property relates a unit to another unit it is scaled from
siUnitsExpression	_0..*	None
symbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
ucumCode	_0..*	UCUMcs	ucumCode associates a QUDT unit with its UCUM code (case-sensitive). In SHACL the values are derived from specific ucum properties using 'sh:values'.
udunitsCode	_0..*	string	The UDUNITS package supports units of physical quantities. Its C library provides for arithmetic manipulation of units and for conversion of numeric values between compatible units. The package contains an extensive unit database, which is in XML format and user-extendable. The package also contains a command-line utility for investigating units and converting values.
uneceCommonCode	_0..*	string	The UN/CEFACT Recommendation 20 provides three character alphabetic and alphanumeric codes for representing units of measurement for length, area, volume/capacity, mass (weight), time, and other quantities used in international trade. The codes are intended for use in manual and/or automated systems for the exchange of information between participants in international trade.
unitFor	_0..*	None
wikidataMatch	_0..*	uri
guidance	_0..*	string

Parents¶

AngleUnit

Statement¶

YAML Definition¶

Click to expand

Statement: {}

This class has no attributes

StringEncodingType¶

YAML Definition¶

Click to expand

StringEncodingType: {}

Local class diagram¶

class_stringencodingtype_local

This class has no attributes

Children¶

DateTimeStringEncodingType

Symbol¶

YAML Definition¶

Click to expand

Symbol:
  is_a: Concept
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription

class_symbol_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
deprecated	_0..1	None
guidance	_0..*	string
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.

Parents¶

Concept

SymmetricRelation¶

YAML Definition¶

Click to expand

SymmetricRelation: {}

This class has no attributes

SystemOfQuantityKinds¶

A system of quantity kinds is a set of one or more quantity kinds together with a set of zero or more algebraic equations that define relationships between quantity kinds in the set. In the physical sciences, the equations relating quantity kinds are typically physical laws and definitional relations, and constants of proportionality. Examples include Newton’s First Law of Motion, Coulomb’s Law, and the definition of velocity as the instantaneous change in position. In almost all cases, the system identifies a subset of base quantity kinds. The base set is chosen so that all other quantity kinds of interest can be derived from the base quantity kinds and the algebraic equations. If the unit system is explicitly associated with a quantity kind system, then the unit system must define at least one unit for each quantity kind. From a scientific point of view, the division of quantities into base quantities and derived quantities is a matter of convention.

YAML Definition¶

Click to expand

SystemOfQuantityKinds:
  is_a: Concept
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - SystemOfQuantityKinds_baseDimensionEnumeration
  - SystemOfQuantityKinds_hasBaseQuantityKind
  - SystemOfQuantityKinds_hasQuantityKind
  - SystemOfQuantityKinds_hasUnitSystem
  - SystemOfQuantityKinds_systemDerivedQuantityKind
  slot_usage:
    baseDimensionEnumeration:
      range: Enumeration
      multivalued: false
    hasBaseQuantityKind:
      range: QuantityKind
    hasQuantityKind:
      range: QuantityKind
      required: false
    hasUnitSystem:
      range: SystemOfUnits
    systemDerivedQuantityKind:
      range: QuantityKind

class_systemofquantitykinds_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
deprecated	_0..1	None
guidance	_0..*	string
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.
baseDimensionEnumeration	_0..1	Enumeration	This property associates a system of quantities with an enumeration that enumerates the base dimensions of the system in canonical order.
hasBaseQuantityKind	_0..*	QuantityKind
hasQuantityKind	_0..*	QuantityKind
hasUnitSystem	_0..*	SystemOfUnits
systemDerivedQuantityKind	_0..*	QuantityKind

Parents¶

Concept

Referenced by:¶

QuantityKind : belongsToSystemOfQuantities _0..*

SystemOfUnits¶

A system of units is a set of units which are chosen as the reference scales for some set of quantity kinds together with the definitions of each unit. Units may be defined by experimental observation or by proportion to another unit not included in the system. If the unit system is explicitly associated with a quantity kind system, then the unit system must define at least one unit for each quantity kind.

YAML Definition¶

Click to expand

SystemOfUnits:
  is_a: Verifiable
  mixins:
  - Concept
  slots:
  - Verifiable_isoNormativeReference
  - Verifiable_normativeReference
  - Verifiable_wikidataMatch
  - Verifiable_dbpediaMatch
  - SystemOfUnits_applicablePhysicalConstant
  - SystemOfUnits_hasAllowedUnit
  - SystemOfUnits_hasBaseUnit
  - SystemOfUnits_hasCoherentUnit
  - SystemOfUnits_hasDefinedUnit
  - SystemOfUnits_hasDerivedCoherentUnit
  - SystemOfUnits_hasDerivedUnit
  - SystemOfUnits_hasUnit
  - SystemOfUnits_prefix
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  slot_usage:
    applicablePhysicalConstant:
      range: PhysicalConstant
    hasAllowedUnit:
      range: Unit
    hasBaseUnit:
      range: Unit
    hasCoherentUnit:
      range: Unit
    hasDefinedUnit:
      range: Unit
    hasDerivedCoherentUnit:
      range: Unit
    hasDerivedUnit:
      range: Unit
    hasUnit:
      range: Unit
    prefix:
      range: Prefix

class_systemofunits_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
dbpediaMatch	_0..*	uri
isoNormativeReference	_0..*	None	Provides a way to reference the ISO unit definition.
normativeReference	_0..*	None	Provides a way to reference information that is an authoritative source providing a standard definition
wikidataMatch	_0..*	uri
guidance	_0..*	string
applicablePhysicalConstant	_0..*	PhysicalConstant
hasAllowedUnit	_0..*	Unit	This property relates a unit system with a unit of measure that is not defined by or part of the system, but is allowed for use within the system. An allowed unit must be convertible to some dimensionally eqiuvalent unit that is defined by the system.
hasBaseUnit	_0..*	Unit	This property relates a system of units to a base unit defined within the system. The base units of a system are used to define the derived units of the system by expressing the derived units as products of the base units raised to a rational power.
hasCoherentUnit	_0..*	Unit	A coherent unit of measurement for a unit system is a defined unit that may be expressed as a product of powers of the system's base units with the proportionality factor of one.
hasDefinedUnit	_0..*	Unit	This property relates a unit system with a unit of measure that is defined by the system.
hasDerivedCoherentUnit	_0..*	Unit
hasDerivedUnit	_0..*	Unit	This property relates a system of units to a unit of measure that is defined within the system in terms of the base units for the system. That is, the derived unit is defined as a product of the base units for the system raised to some rational power.
hasUnit	_0..*	Unit	This property relates a factor unit to its unit or a system of units with a unit of measure that is either a) defined by the system, or b) accepted for use by the system and is convertible to a unit of equivalent dimension that is defined by the system. Systems of units may distinguish between base and derived units. Base units are the units which measure the base quantities for the corresponding system of quantities. The base units are used to define units for all other quantities as products of powers of the base units. Such units are called derived units for the system.
prefix	_0..*	Prefix

Parents¶

Verifiable

Uses¶

mixin: Concept

Referenced by:¶

PhysicalConstant : applicableSystem _0..*
SystemOfQuantityKinds : hasUnitSystem _0..*
Unit : applicableSystem _0..*
Unit : definedUnitOfSystem _0..*
Unit : derivedCoherentUnitOfSystem _0..*
Unit : derivedUnitOfSystem _0..*
Unit : isUnitOfSystem _0..*

Thing¶

The root class for all QUDT concepts

YAML Definition¶

Click to expand

Thing:
  description: The root class for all QUDT concepts

Local class diagram¶

class_thing_local

This class has no attributes

Children¶

Aspect
Concept

TransformType¶

YAML Definition¶

Click to expand

TransformType:
  is_a: EnumeratedValue
  slots:
  - Verifiable_isoNormativeReference
  - Verifiable_normativeReference
  - Verifiable_wikidataMatch
  - Verifiable_dbpediaMatch
  - EnumeratedValue_altSymbol
  - EnumeratedValue_description
  - EnumeratedValue_abbreviation
  - EnumeratedValue_symbol
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_deprecated
  - Concept_plainTextDescription

class_transformtype_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
altSymbol	_0..*	None	An alternative symbol
dbpediaMatch	_0..*	uri
isoNormativeReference	_0..*	None	Provides a way to reference the ISO unit definition.
normativeReference	_0..*	None	Provides a way to reference information that is an authoritative source providing a standard definition
symbol	_0..1	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
wikidataMatch	_0..*	uri
guidance	_0..*	string

Parents¶

EnumeratedValue

Referenced by:¶

ScaleType : permissibleTransformation _0..*
Scale : permissibleTransformation _0..*

UCUMcs¶

Lexical pattern for the case-sensitive version of UCUM code

YAML Definition¶

Click to expand

UCUMcs:
  is_a: Resource

class_ucumcs_erd

This class has no attributes

Parents¶

Resource

Referenced by:¶

Unit : ucumCode _0..*

UCUMcs-term¶

Lexical pattern for the terminal symbols in the case-sensitive version of UCUM code

YAML Definition¶

Click to expand

UCUMcs-term:
  is_a: Resource

class_ucumcs-term_erd

This class has no attributes

Parents¶

Resource

Referenced by:¶

Prefix : ucumCode _0..*

Unit¶

YAML Definition¶

Click to expand

Unit:
  is_a: Verifiable
  mixins:
  - Concept
  slots:
  - Verifiable_isoNormativeReference
  - Verifiable_normativeReference
  - Verifiable_wikidataMatch
  - Verifiable_dbpediaMatch
  - hasReciprocalUnit
  - isUnitOfSystem
  - omUnit
  - unitFor
  - Unit_applicableSystem
  - Unit_definedUnitOfSystem
  - Unit_derivedCoherentUnitOfSystem
  - Unit_derivedUnitOfSystem
  - Unit_exactMatch
  - Unit_hasDimensionVector
  - Unit_hasFactorUnit
  - Unit_hasQuantityKind
  - Unit_iec61360Code
  - Unit_prefix
  - Unit_qkdvDenominator
  - Unit_qkdvNumerator
  - Unit_scalingOf
  - Unit_ucumCode
  - Unit_udunitsCode
  - Unit_uneceCommonCode
  - Unit_altSymbol
  - Unit_latexDefinition
  - Unit_latexSymbol
  - Unit_siUnitsExpression
  - Unit_symbol
  - Unit_conversionMultiplier
  - Unit_conversionMultiplierSN
  - Unit_conversionOffset
  - Unit_conversionOffsetSN
  - Unit_factorUnitScalar
  - Unit_mathMLdefinition
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  slot_usage:
    applicableSystem:
      range: SystemOfUnits
    definedUnitOfSystem:
      range: SystemOfUnits
    derivedCoherentUnitOfSystem:
      range: SystemOfUnits
    derivedUnitOfSystem:
      range: SystemOfUnits
    exactMatch:
      range: Unit
    hasDimensionVector:
      range: QuantityKindDimensionVector
      multivalued: false
    hasFactorUnit:
      range: Class
    hasQuantityKind:
      range: QuantityKind
    iec61360Code:
      range: string
    prefix:
      range: Prefix
    qkdvDenominator:
      range: QuantityKindDimensionVector
      multivalued: false
    qkdvNumerator:
      range: QuantityKindDimensionVector
      multivalued: false
    scalingOf:
      range: Unit
    ucumCode:
      range: UCUMcs
    udunitsCode:
      range: string
    uneceCommonCode:
      range: string
    altSymbol:
      required: false
    latexDefinition:
      required: false
    latexSymbol:
      required: false
    siUnitsExpression:
      required: false
    symbol:
      required: false
    conversionMultiplier:
      multivalued: false
    conversionMultiplierSN:
      multivalued: false
    conversionOffset:
      multivalued: false
    conversionOffsetSN:
      multivalued: false
    factorUnitScalar:
      multivalued: false
    mathMLdefinition:
      multivalued: false

class_unit_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
dbpediaMatch	_0..*	uri
isoNormativeReference	_0..*	None	Provides a way to reference the ISO unit definition.
normativeReference	_0..*	None	Provides a way to reference information that is an authoritative source providing a standard definition
wikidataMatch	_0..*	uri
guidance	_0..*	string
altSymbol	_0..*	None	An alternative symbol
applicableSystem	_0..*	SystemOfUnits	This property relates a unit of measure with a unit system that may or may not define the unit, but within which the unit is compatible.
conversionMultiplier	_0..1	None
conversionMultiplierSN	_0..1	None
conversionOffset	_0..1	None
conversionOffsetSN	_0..1	None
definedUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure with the unit system that defines the unit.
derivedCoherentUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure to the unit system in which the unit is derived from the system's base units with a proportionality constant of one.
derivedUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure to the system of units in which it is defined as a derived unit. That is, the derived unit is defined as a product of the base units for the system raised to some rational power.
exactMatch	_0..*	Unit
factorUnitScalar	_0..1	None	For a derived unit that is not exactly the product of its factor units, this property defines the scalar with which that product has to be multiplied with.
hasDimensionVector	_0..1	QuantityKindDimensionVector
hasFactorUnit	_0..*	Class	This property relates a derived unit to one of its constituent factor units
hasQuantityKind	_0..*	QuantityKind
hasReciprocalUnit	_0..*	Unit
iec61360Code	_0..*	string
isUnitOfSystem	_0..*	SystemOfUnits	This property relates a unit of measure with a system of units that either a) defines the unit or b) allows the unit to be used within the system.
latexDefinition	_0..*	None
latexSymbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
mathMLdefinition	_0..1	None
omUnit	_0..*	None
prefix	_0..*	Prefix
qkdvDenominator	_0..1	QuantityKindDimensionVector
qkdvNumerator	_0..1	QuantityKindDimensionVector
scalingOf	_0..*	Unit	This property relates a unit to another unit it is scaled from
siUnitsExpression	_0..*	None
symbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
ucumCode	_0..*	UCUMcs	ucumCode associates a QUDT unit with its UCUM code (case-sensitive). In SHACL the values are derived from specific ucum properties using 'sh:values'.
udunitsCode	_0..*	string	The UDUNITS package supports units of physical quantities. Its C library provides for arithmetic manipulation of units and for conversion of numeric values between compatible units. The package contains an extensive unit database, which is in XML format and user-extendable. The package also contains a command-line utility for investigating units and converting values.
uneceCommonCode	_0..*	string	The UN/CEFACT Recommendation 20 provides three character alphabetic and alphanumeric codes for representing units of measurement for length, area, volume/capacity, mass (weight), time, and other quantities used in international trade. The codes are intended for use in manual and/or automated systems for the exchange of information between participants in international trade.
unitFor	_0..*	None

Parents¶

Verifiable

Children¶

ContextualUnit
DerivedUnit
DimensionlessUnit

Uses¶

mixin: Concept

Referenced by:¶

ContextualUnit : broader _0..1
PhysicalConstant : applicableUnit _0..*
Quantifiable : hasUnit _0..*
QuantityKind : applicableCGSUnit _0..*
QuantityKind : applicableISOUnit _0..*
QuantityKind : applicableImperialUnit _0..*
QuantityKind : applicableSIUnit _0..*
QuantityKind : applicableUSCustomaryUnit _0..*
QuantityKind : applicableUnit _0..*
QuantityValue : hasUnit _0..*
SystemOfUnits : hasAllowedUnit _0..*
SystemOfUnits : hasBaseUnit _0..*
SystemOfUnits : hasCoherentUnit _0..*
SystemOfUnits : hasDefinedUnit _0..*
SystemOfUnits : hasDerivedCoherentUnit _0..*
SystemOfUnits : hasDerivedUnit _0..*
SystemOfUnits : hasUnit _0..*
Unit : exactMatch _0..*
Unit : scalingOf _0..*
Unit : hasReciprocalUnit _0..*

UserQuantityKind¶

YAML Definition¶

Click to expand

UserQuantityKind:
  is_a: AbstractQuantityKind
  slots:
  - guidance
  - Concept_id
  - Concept_hasRule
  - Concept_isReplacedBy
  - Concept_description
  - Concept_abbreviation
  - Concept_deprecated
  - Concept_plainTextDescription
  - AbstractQuantityKind_broader
  - AbstractQuantityKind_altSymbol
  - AbstractQuantityKind_latexSymbol
  - AbstractQuantityKind_symbol
  - UserQuantityKind_hasQuantityKind
  slot_usage:
    hasQuantityKind:
      range: QuantityKind
      required: true
      multivalued: false

class_userquantitykind_erd

Attributes¶

Name	Cardinality:	Type	Description
id	_0..1	None	The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.
description	_0..1	None
abbreviation	_0..1	None	An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.
altSymbol	_0..*	None	An alternative symbol
deprecated	_0..1	None
guidance	_0..*	string
hasRule	_0..*	Rule
isReplacedBy	_0..1	None
latexSymbol	_0..*	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
plainTextDescription	_0..1	None	A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.
symbol	_0..1	None	The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.
hasQuantityKind	_1..1	QuantityKind

Parents¶

AbstractQuantityKind

Verifiable¶

An aspect class that holds properties that provide external knowledge and specifications of a given resource.

YAML Definition¶

Click to expand

Verifiable:
  is_a: Aspect
  slots:
  - Verifiable_isoNormativeReference
  - Verifiable_normativeReference
  - Verifiable_wikidataMatch
  - Verifiable_dbpediaMatch
  slot_usage:
    isoNormativeReference:
      required: false
    normativeReference:
      required: false
    wikidataMatch:
      required: false
    dbpediaMatch:
      required: false

Local class diagram¶

class_verifiable_local

Attributes¶

Name	Cardinality:	Type	Description
dbpediaMatch	_0..*	uri
isoNormativeReference	_0..*	None	Provides a way to reference the ISO unit definition.
normativeReference	_0..*	None	Provides a way to reference information that is an authoritative source providing a standard definition
wikidataMatch	_0..*	uri

Parents¶

Aspect

Children¶

Comment
EnumeratedValue
Prefix
QuantityKind
Rule
SystemOfUnits
Unit

GDay¶

YAML Definition¶

Click to expand

gDay: {}

This class has no attributes

GMonth¶

YAML Definition¶

Click to expand

gMonth: {}

This class has no attributes

GMonthDay¶

YAML Definition¶

Click to expand

gMonthDay: {}

This class has no attributes

GYear¶

YAML Definition¶

Click to expand

gYear: {}

This class has no attributes

GYearMonth¶

YAML Definition¶

Click to expand

gYearMonth: {}

This class has no attributes

ValueUnion¶

YAML Definition¶

Click to expand

valueUnion:
  is_a: Resource

Local class diagram¶

class_valueunion_local

This class has no attributes

Parents¶

Resource

Slots¶

Name	Cardinality/Range	Used By
id The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.	_0..* string	AbstractQuantityKind, AngleUnit, BaseDimensionMagnitude, BinaryPrefix, BitEncodingType, BooleanEncodingType, ByteEncodingType, CardinalityType, CharEncodingType, Citation, Concept, ConstantValue, ContextualUnit, CountingUnit, CurrencyUnit, DataItem, Datatype, DecimalPrefix, DerivedUnit, DimensionlessUnit, Discipline, Encoding, EndianType, EnumeratedQuantity, EnumeratedValue, Enumeration, EnumerationScale, Figure, FloatingPointEncodingType, IntegerEncodingType, IntervalScale, LogarithmicUnit, MathsFunctionType, NominalScale, NumericUnion, OrderedType, OrdinalScale, Organization, PhysicalConstant, PlaneAngleUnit, Prefix, Quantity, QuantityKind, QuantityKindDimensionVector, QuantityKindDimensionVectorCGS, QuantityKindDimensionVectorCGS-EMU, QuantityKindDimensionVectorCGS-ESU, QuantityKindDimensionVectorCGS-GAUSS, QuantityKindDimensionVectorCGS-LH, QuantityKindDimensionVectorISO, QuantityKindDimensionVectorImperial, QuantityKindDimensionVectorSI, QuantityType, QuantityValue, RatioScale, Rule, RuleType, ScalarDatatype, Scale, ScaleType, SolidAngleUnit, Symbol, SystemOfQuantityKinds, SystemOfUnits, TransformType, Unit, UserQuantityKind
description	_0..* string	AbstractQuantityKind, BaseDimensionMagnitude, BitEncodingType, BooleanEncodingType, ByteEncodingType, CardinalityType, CharEncodingType, Citation, Comment, Concept, DataItem, Datatype, Discipline, Encoding, EndianType, EnumeratedQuantity, EnumeratedValue, Enumeration, EnumerationScale, Figure, FloatingPointEncodingType, IntegerEncodingType, IntervalScale, MathsFunctionType, NISTSP811Comment, NominalScale, OrderedType, OrdinalScale, Organization, QuantityKindDimensionVector, QuantityKindDimensionVectorCGS, QuantityKindDimensionVectorCGS-EMU, QuantityKindDimensionVectorCGS-ESU, QuantityKindDimensionVectorCGS-GAUSS, QuantityKindDimensionVectorCGS-LH, QuantityKindDimensionVectorISO, QuantityKindDimensionVectorImperial, QuantityKindDimensionVectorSI, QuantityType, RatioScale, RuleType, ScalarDatatype, Scale, ScaleType, Symbol, SystemOfQuantityKinds, TransformType, UserQuantityKind
AbstractQuantityKind_altSymbol An alternative symbol	_0..* string
AbstractQuantityKind_broader	_0..1 QuantityKind
AbstractQuantityKind_latexSymbol The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.	_0..* string
AbstractQuantityKind_symbol The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.	_0..* string
BaseDimensionMagnitude_hasBaseQuantityKind	_1..* QuantityKind
BaseDimensionMagnitude_vectorMagnitude	_1..* float
CardinalityType_literal	_0..* string
Citation_description	_1..* string
Citation_url	_0..* string
Comment_description	_0..* string
Comment_rationale	_0..* string
Concept_abbreviation An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.	_0..* string
Concept_deprecated	_0..* string
Concept_description	_0..* string
Concept_hasRule	_0..* Rule
Concept_id The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.	_0..* string
Concept_isReplacedBy	_0..* string
Concept_plainTextDescription A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.	_0..* string
ConstantValue_exactConstant	_0..* string
ContextualUnit_broader	_0..1 Unit
CurrencyUnit_currencyCode Alphabetic Currency Code as defined by ISO 4217. For example, US Dollar has the code 'USD'.	_0..* string
CurrencyUnit_currencyExponent The currency exponent indicates the number of decimal places between a major currency unit and its minor currency unit. For example, the US dollar is the major currency unit of the United States, and the US cent is the minor currency unit. Since one cent is 1/100 of a dollar, the US dollar has a currency exponent of 2. However, the Japanese Yen has no minor currency units, so the yen has a currency exponent of 0.	_0..* string
DataEncoding_bitOrder	_0..* EndianType
DataEncoding_byteOrder Byte order is an enumeration of two values: 'Big Endian' and 'Little Endian' and is used to denote whether the most signiticant byte is either first or last, respectively.	_0..* EndianType
DataEncoding_encoding	_0..* Encoding
DataItem_value A property to relate an observable thing with a value of any kind	_0..* string
Datatype_ansiSQLName	_0..* string
Datatype_basis	_0..* Datatype
Datatype_bounded	_0..* string
Datatype_cName	_0..* string
Datatype_cardinality	_0..* CardinalityType
Datatype_id The "qudt:id" is an identifier string that uniquely identifies a QUDT concept. The identifier is constructed using a prefix. For example, units are coded using the pattern: "UCCCENNNN", where "CCC" is a numeric code or a category and "NNNN" is a digit string for a member element of that category. For scaled units there may be an addition field that has the format "QNN" where "NN" is a digit string representing an exponent power, and "Q" is a qualifier that indicates with the code "P" that the power is a positive decimal exponent, or the code "N" for a negative decimal exponent, or the code "B" for binary positive exponents.	_0..* string
Datatype_javaName	_0..* string
Datatype_jsName	_0..* string
Datatype_matlabName	_0..* string
Datatype_microsoftSQLServerName	_0..* string
Datatype_mySQLName	_0..* string
Datatype_odbcName	_0..* string
Datatype_oleDBName OLE DB (Object Linking and Embedding, Database, sometimes written as OLEDB or OLE-DB), an API designed by Microsoft, allows accessing data from a variety of sources in a uniform manner. The API provides a set of interfaces implemented using the Component Object Model (COM); it is otherwise unrelated to OLE.	_0..* string
Datatype_oracleSQLName	_0..* string
Datatype_orderedType	_0..* OrderedType
Datatype_protocolBuffersName	_0..* string
Datatype_pythonName	_0..* string
Datatype_vbName	_0..* string
DateTimeStringEncodingType_allowedPattern	_1..* string
Encoding_bits	_0..* string
Encoding_bytes	_0..* string
EnumeratedQuantity_enumeratedValue	_0..* EnumeratedValue
EnumeratedQuantity_enumeration	_0..* Enumeration
EnumeratedValue_abbreviation An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.	_0..* string
EnumeratedValue_altSymbol An alternative symbol	_0..* string
EnumeratedValue_description	_0..* string
EnumeratedValue_symbol The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.	_0..* string
Enumeration_abbreviation An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.	_0..* string
Enumeration_default The default element in an enumeration	_0..* EnumeratedValue
Enumeration_element An element of an enumeration	_1..* EnumeratedValue
Figure_figureCaption	_0..* string
Figure_figureLabel	_0..* string
Figure_height	_0..* string
Figure_image	_0..* string
Figure_imageLocation	_1..* string
Figure_landscape	_0..* string
Figure_width	_0..* string
OrderedType_literal	_0..* string
OrdinalScale_order	_1..* string
Organization_url	_0..* string
PhysicalConstant_altSymbol An alternative symbol	_0..* string
PhysicalConstant_applicableSystem This property relates a unit of measure with a unit system that may or may not define the unit, but within which the unit is compatible.	_0..* SystemOfUnits
PhysicalConstant_applicableUnit See https://github.com/qudt/qudt-public-repo/wiki/Advanced-User-Guide#4-computing-applicable-units-for-a-quantitykind on how `qudt:applicableUnit` is computed from `qudt:hasQuantityKind` and then materialized	_0..* Unit
PhysicalConstant_exactConstant	_0..* boolean
PhysicalConstant_exactMatch	_0..* PhysicalConstant
PhysicalConstant_hasDimensionVector	_0..* QuantityKindDimensionVector
PhysicalConstant_isoNormativeReference Provides a way to reference the ISO unit definition.	_0..* string
PhysicalConstant_latexDefinition	_0..* string
PhysicalConstant_latexSymbol The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.	_0..* string
PhysicalConstant_mathMLdefinition	_0..* string
PhysicalConstant_normativeReference Provides a way to reference information that is an authoritative source providing a standard definition	_0..* string
PhysicalConstant_symbol The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.	_0..* string
PhysicalConstant_ucumCode ucumCode associates a QUDT unit with its UCUM code (case-sensitive). In SHACL the values are derived from specific ucum properties using 'sh:values'.	_0..* string
Prefix_altSymbol An alternative symbol	_0..* string
Prefix_exactMatch	_0..* Prefix
Prefix_latexSymbol The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.	_0..* string
Prefix_prefixMultiplier	_0..* string
Prefix_symbol The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.	_0..* string
Prefix_ucumCode ucumCode associates a QUDT unit with its UCUM code (case-sensitive). In SHACL the values are derived from specific ucum properties using 'sh:values'.	_0..* UCUMcs-term
Quantifiable_dataEncoding	_0..* DataEncoding
Quantifiable_datatype	_0..* Datatype
Quantifiable_hasUnit This property relates a factor unit to its unit or a system of units with a unit of measure that is either a) defined by the system, or b) accepted for use by the system and is convertible to a unit of equivalent dimension that is defined by the system. Systems of units may distinguish between base and derived units. Base units are the units which measure the base quantities for the corresponding system of quantities. The base units are used to define units for all other quantities as products of powers of the base units. Such units are called derived units for the system.	_0..* Unit
Quantifiable_relativeStandardUncertainty The relative standard uncertainty of a measurement is the (absolute) standard uncertainty divided by the magnitude of the exact value.	_0..* double
Quantifiable_standardUncertainty The standard uncertainty of a quantity is the estimated standard deviation of the mean taken from a series of measurements.	_0..* decimal
Quantifiable_standardUncertaintySN The standard uncertainty of a quantity is the estimated standard deviation of the mean taken from a series of measurements.	_0..* double
Quantifiable_value A property to relate an observable thing with a value of any kind	_0..* string
Quantifiable_valueSN A property to relate an observable thing with a value of any kind	_0..* string
QuantityKindDimensionVector_dimensionExponentForAmountOfSubstance	_1..* string
QuantityKindDimensionVector_dimensionExponentForElectricCurrent	_1..* string
QuantityKindDimensionVector_dimensionExponentForLength	_1..* string
QuantityKindDimensionVector_dimensionExponentForLuminousIntensity	_1..* string
QuantityKindDimensionVector_dimensionExponentForMass	_1..* string
QuantityKindDimensionVector_dimensionExponentForThermodynamicTemperature	_1..* string
QuantityKindDimensionVector_dimensionExponentForTime	_1..* string
QuantityKindDimensionVector_dimensionlessExponent	_1..* string
QuantityKindDimensionVector_hasReferenceQuantityKind	_0..* QuantityKind
QuantityKindDimensionVector_latexDefinition	_0..* string
QuantityKindDimensionVector_latexSymbol The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.	_0..* string
QuantityKind_applicableCGSUnit	_0..* Unit
QuantityKind_applicableISOUnit	_0..* Unit
QuantityKind_applicableImperialUnit	_0..* Unit
QuantityKind_applicableSIUnit	_0..* Unit
QuantityKind_applicableUSCustomaryUnit	_0..* Unit
QuantityKind_applicableUnit See https://github.com/qudt/qudt-public-repo/wiki/Advanced-User-Guide#4-computing-applicable-units-for-a-quantitykind on how `qudt:applicableUnit` is computed from `qudt:hasQuantityKind` and then materialized	_0..* Unit
QuantityKind_dimensionVectorForSI	_0..* QuantityKindDimensionVectorSI
QuantityKind_exactMatch	_0..* QuantityKind
QuantityKind_hasDimensionVector	_0..* QuantityKindDimensionVector
QuantityKind_iec61360Code	_0..* string
QuantityKind_latexDefinition	_0..* string
QuantityKind_mathMLdefinition	_0..* string
QuantityKind_qkdvDenominator	_0..* QuantityKindDimensionVector
QuantityKind_qkdvNumerator	_0..* QuantityKindDimensionVector
QuantityType_value A property to relate an observable thing with a value of any kind	_0..* QuantityKind
QuantityValue_hasUnit This property relates a factor unit to its unit or a system of units with a unit of measure that is either a) defined by the system, or b) accepted for use by the system and is convertible to a unit of equivalent dimension that is defined by the system. Systems of units may distinguish between base and derived units. Base units are the units which measure the base quantities for the corresponding system of quantities. The base units are used to define units for all other quantities as products of powers of the base units. Such units are called derived units for the system.	_0..* Unit
Quantity_hasQuantityKind	_0..* QuantityKind
Quantity_isDeltaQuantity	_0..* boolean
Quantity_quantityValue	_0..* QuantityValue
Rule_rationale	_0..* string
Rule_ruleType	_0..* RuleType
ScalarDatatype_bits	_0..* string
ScalarDatatype_bytes	_0..* string
ScalarDatatype_length	_0..* string
ScalarDatatype_maxExclusive maxExclusive is the exclusive upper bound of the value space for a datatype with the ordered property. The value of maxExclusive must be in the value space of the base type or be equal to {value} in {base type definition}.	_0..* string
ScalarDatatype_maxInclusive maxInclusive is the inclusive upper bound of the value space for a datatype with the ordered property. The value of maxInclusive must be in the value space of the base type.	_0..* string
ScalarDatatype_minExclusive minExclusive is the exclusive lower bound of the value space for a datatype with the ordered property. The value of minExclusive must be in the value space of the base type or be equal to {value} in {base type definition}.	_0..* string
ScalarDatatype_minInclusive minInclusive is the inclusive lower bound of the value space for a datatype with the ordered property. The value of minInclusive must be in the value space of the base type.	_0..* string
ScalarDatatype_rdfsDatatype	_0..* Datatype
ScaleType_dataStructure	_0..* string
ScaleType_permissibleMaths	_0..* MathsFunctionType
ScaleType_permissibleTransformation	_0..* TransformType
Scale_dataStructure	_0..* string
Scale_permissibleMaths	_0..* MathsFunctionType
Scale_permissibleTransformation	_0..* TransformType
Scale_scaleType	_0..* ScaleType
SystemOfQuantityKinds_baseDimensionEnumeration This property associates a system of quantities with an enumeration that enumerates the base dimensions of the system in canonical order.	_0..* Enumeration
SystemOfQuantityKinds_hasBaseQuantityKind	_0..* QuantityKind
SystemOfQuantityKinds_hasQuantityKind	_0..* QuantityKind
SystemOfQuantityKinds_hasUnitSystem	_0..* SystemOfUnits
SystemOfQuantityKinds_systemDerivedQuantityKind	_0..* QuantityKind
SystemOfUnits_applicablePhysicalConstant	_0..* PhysicalConstant
SystemOfUnits_hasAllowedUnit This property relates a unit system with a unit of measure that is not defined by or part of the system, but is allowed for use within the system. An allowed unit must be convertible to some dimensionally eqiuvalent unit that is defined by the system.	_0..* Unit
SystemOfUnits_hasBaseUnit This property relates a system of units to a base unit defined within the system. The base units of a system are used to define the derived units of the system by expressing the derived units as products of the base units raised to a rational power.	_0..* Unit
SystemOfUnits_hasCoherentUnit A coherent unit of measurement for a unit system is a defined unit that may be expressed as a product of powers of the system's base units with the proportionality factor of one.	_0..* Unit
SystemOfUnits_hasDefinedUnit This property relates a unit system with a unit of measure that is defined by the system.	_0..* Unit
SystemOfUnits_hasDerivedCoherentUnit	_0..* Unit
SystemOfUnits_hasDerivedUnit This property relates a system of units to a unit of measure that is defined within the system in terms of the base units for the system. That is, the derived unit is defined as a product of the base units for the system raised to some rational power.	_0..* Unit
SystemOfUnits_hasUnit This property relates a factor unit to its unit or a system of units with a unit of measure that is either a) defined by the system, or b) accepted for use by the system and is convertible to a unit of equivalent dimension that is defined by the system. Systems of units may distinguish between base and derived units. Base units are the units which measure the base quantities for the corresponding system of quantities. The base units are used to define units for all other quantities as products of powers of the base units. Such units are called derived units for the system.	_0..* Unit
SystemOfUnits_prefix	_0..* Prefix
Unit_altSymbol An alternative symbol	_0..* string
Unit_applicableSystem This property relates a unit of measure with a unit system that may or may not define the unit, but within which the unit is compatible.	_0..* SystemOfUnits
Unit_conversionMultiplier	_0..* string
Unit_conversionMultiplierSN	_0..* string
Unit_conversionOffset	_0..* string
Unit_conversionOffsetSN	_0..* string
Unit_definedUnitOfSystem This property relates a unit of measure with the unit system that defines the unit.	_0..* SystemOfUnits
Unit_derivedCoherentUnitOfSystem This property relates a unit of measure to the unit system in which the unit is derived from the system's base units with a proportionality constant of one.	_0..* SystemOfUnits
Unit_derivedUnitOfSystem This property relates a unit of measure to the system of units in which it is defined as a derived unit. That is, the derived unit is defined as a product of the base units for the system raised to some rational power.	_0..* SystemOfUnits
Unit_exactMatch	_0..* Unit
Unit_factorUnitScalar For a derived unit that is not exactly the product of its factor units, this property defines the scalar with which that product has to be multiplied with.	_0..* string
Unit_hasDimensionVector	_0..* QuantityKindDimensionVector
Unit_hasFactorUnit This property relates a derived unit to one of its constituent factor units	_0..* Class
Unit_hasQuantityKind	_0..* QuantityKind
Unit_iec61360Code	_0..* string
Unit_latexDefinition	_0..* string
Unit_latexSymbol The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.	_0..* string
Unit_mathMLdefinition	_0..* string
Unit_prefix	_0..* Prefix
Unit_qkdvDenominator	_0..* QuantityKindDimensionVector
Unit_qkdvNumerator	_0..* QuantityKindDimensionVector
Unit_scalingOf This property relates a unit to another unit it is scaled from	_0..* Unit
Unit_siUnitsExpression	_0..* string
Unit_symbol The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.	_0..* string
Unit_ucumCode ucumCode associates a QUDT unit with its UCUM code (case-sensitive). In SHACL the values are derived from specific ucum properties using 'sh:values'.	_0..* UCUMcs
Unit_udunitsCode The UDUNITS package supports units of physical quantities. Its C library provides for arithmetic manipulation of units and for conversion of numeric values between compatible units. The package contains an extensive unit database, which is in XML format and user-extendable. The package also contains a command-line utility for investigating units and converting values.	_0..* string
Unit_uneceCommonCode The UN/CEFACT Recommendation 20 provides three character alphabetic and alphanumeric codes for representing units of measurement for length, area, volume/capacity, mass (weight), time, and other quantities used in international trade. The codes are intended for use in manual and/or automated systems for the exchange of information between participants in international trade.	_0..* string
UserQuantityKind_hasQuantityKind	_1..* QuantityKind
Verifiable_dbpediaMatch	_0..* uri
Verifiable_isoNormativeReference Provides a way to reference the ISO unit definition.	_0..* string
Verifiable_normativeReference Provides a way to reference information that is an authoritative source providing a standard definition	_0..* string
Verifiable_wikidataMatch	_0..* uri
abbreviation An abbreviation for a unit is a short ASCII string that is used in place of the full name for the unit in contexts where non-ASCII characters would be problematic, or where using the abbreviation will enhance readability. When a power of abase unit needs to be expressed, such as squares this can be done using abbreviations rather than symbols. For example, sq ft means square foot, and cu ft means cubic foot.	_0..* string	AbstractQuantityKind, BaseDimensionMagnitude, BitEncodingType, BooleanEncodingType, ByteEncodingType, CardinalityType, CharEncodingType, Citation, Concept, DataItem, Datatype, Discipline, Encoding, EndianType, EnumeratedQuantity, EnumeratedValue, Enumeration, EnumerationScale, Figure, FloatingPointEncodingType, IntegerEncodingType, IntervalScale, MathsFunctionType, NominalScale, OrderedType, OrdinalScale, Organization, QuantityKindDimensionVector, QuantityKindDimensionVectorCGS, QuantityKindDimensionVectorCGS-EMU, QuantityKindDimensionVectorCGS-ESU, QuantityKindDimensionVectorCGS-GAUSS, QuantityKindDimensionVectorCGS-LH, QuantityKindDimensionVectorISO, QuantityKindDimensionVectorImperial, QuantityKindDimensionVectorSI, QuantityType, RatioScale, RuleType, ScalarDatatype, Scale, ScaleType, Symbol, SystemOfQuantityKinds, TransformType, UserQuantityKind
abstract	_0..* string
acronym	_0..* string
allowedPattern	_0..* string	DateTimeStringEncodingType
altSymbol An alternative symbol	_0..* string	AbstractQuantityKind, AngleUnit, BinaryPrefix, CardinalityType, ContextualUnit, CountingUnit, CurrencyUnit, DecimalPrefix, DerivedUnit, DimensionlessUnit, EndianType, EnumeratedValue, LogarithmicUnit, OrderedType, PhysicalConstant, PlaneAngleUnit, Prefix, QuantityType, RuleType, ScaleType, SolidAngleUnit, TransformType, Unit, UserQuantityKind
ansiSQLName	_0..* string	Datatype, ScalarDatatype
applicableCGSUnit	_0..* Unit	QuantityKind
applicableISOUnit	_0..* Unit	QuantityKind
applicableImperialUnit	_0..* Unit	QuantityKind
applicablePhysicalConstant	_0..* string	SystemOfUnits
applicablePlanckUnit	_0..* Unit
applicableSIUnit	_0..* Unit	QuantityKind
applicableSystem This property relates a unit of measure with a unit system that may or may not define the unit, but within which the unit is compatible.	_0..* string	AngleUnit, ContextualUnit, CountingUnit, CurrencyUnit, DerivedUnit, DimensionlessUnit, LogarithmicUnit, PhysicalConstant, PlaneAngleUnit, SolidAngleUnit, Unit
applicableUSCustomaryUnit	_0..* Unit	QuantityKind
applicableUnit See https://github.com/qudt/qudt-public-repo/wiki/Advanced-User-Guide#4-computing-applicable-units-for-a-quantitykind on how `qudt:applicableUnit` is computed from `qudt:hasQuantityKind` and then materialized	_0..* Unit	PhysicalConstant, QuantityKind
baseDimensionEnumeration This property associates a system of quantities with an enumeration that enumerates the base dimensions of the system in canonical order.	_0..* Enumeration	SystemOfQuantityKinds
baseUnitOfSystem This property relates a unit of measure to the system of units in which it is defined as a base unit for the system. The base units of a system are used to define the derived units of the system by expressing the derived units as products of the base units raised to a rational power.	_0..* SystemOfUnits
basis	_0..* string	Datatype, ScalarDatatype
belongsToSystemOfQuantities	_0..* SystemOfQuantityKinds	QuantityKind
bitOrder	_0..* EndianType	DataEncoding
bits	_0..* string	BitEncodingType, BooleanEncodingType, ByteEncodingType, CharEncodingType, Encoding, FloatingPointEncodingType, IntegerEncodingType, ScalarDatatype
bounded	_0..* string	Datatype, ScalarDatatype
broader	_0..1 QuantityKind
byteOrder Byte order is an enumeration of two values: 'Big Endian' and 'Little Endian' and is used to denote whether the most signiticant byte is either first or last, respectively.	_0..* EndianType	DataEncoding
bytes	_0..* string	BitEncodingType, BooleanEncodingType, ByteEncodingType, CharEncodingType, Encoding, FloatingPointEncodingType, IntegerEncodingType, ScalarDatatype
cName	_0..* string	Datatype, ScalarDatatype
cardinality	_0..* string	Datatype, ScalarDatatype
categorizedAs	_0..* string
coherentUnitSystem A system of units is coherent with respect to a system of quantities and equations if the system of units is chosen in such a way that the equations between numerical values have exactly the same form (including the numerical factors) as the corresponding equations between the quantities. In such a coherent system, no numerical factor other than the number 1 ever occurs in the expressions for the derived units in terms of the base units. For example, the $newton$ and the $joule$. These two are, respectively, the force that causes one kilogram to be accelerated at 1 metre per (1) second per (1) second, and the work done by 1 newton acting over 1 metre. Being coherent refers to this consistent use of 1. In the old c.g.s. system , with its base units the centimetre and the gram, the corresponding coherent units were the dyne and the erg, respectively the force that causes 1 gram to be accelerated at 1 centimetre per (1) second per (1) second, and the work done by 1 dyne acting over 1 centimetre. So $1\,newton = 10^5 dyne$, $1 joule = 10^7 erg$, making each of the four compatible in a decimal sense within its respective other system, but not coherent therein.	_0..* string
conversionMultiplier	_0..* string	AngleUnit, ContextualUnit, CountingUnit, CurrencyUnit, DerivedUnit, DimensionlessUnit, LogarithmicUnit, PlaneAngleUnit, SolidAngleUnit, Unit
conversionMultiplierSN	_0..* string	AngleUnit, ContextualUnit, CountingUnit, CurrencyUnit, DerivedUnit, DimensionlessUnit, LogarithmicUnit, PlaneAngleUnit, SolidAngleUnit, Unit
conversionOffset	_0..* string	AngleUnit, ContextualUnit, CountingUnit, CurrencyUnit, DerivedUnit, DimensionlessUnit, LogarithmicUnit, PlaneAngleUnit, SolidAngleUnit, Unit
conversionOffsetSN	_0..* string	AngleUnit, ContextualUnit, CountingUnit, CurrencyUnit, DerivedUnit, DimensionlessUnit, LogarithmicUnit, PlaneAngleUnit, SolidAngleUnit, Unit
created	_0..* date
creator	_0..* string
currencyCode Alphabetic Currency Code as defined by ISO 4217. For example, US Dollar has the code 'USD'.	_0..* string	CurrencyUnit
currencyExponent The currency exponent indicates the number of decimal places between a major currency unit and its minor currency unit. For example, the US dollar is the major currency unit of the United States, and the US cent is the minor currency unit. Since one cent is 1/100 of a dollar, the US dollar has a currency exponent of 2. However, the Japanese Yen has no minor currency units, so the yen has a currency exponent of 0.	_0..* string	CurrencyUnit
currencyNumber Numeric currency Code as defined by ISO 4217. For example, US Dollar has the number 840.	_0..* string
dataEncoding	_0..* DataEncoding	ConstantValue, PhysicalConstant, Quantifiable, Quantity, QuantityValue
dataStructure	_0..* string	EnumerationScale, IntervalScale, NominalScale, OrdinalScale, RatioScale, Scale, ScaleType
datatype	_0..* string	ConstantValue, PhysicalConstant, Quantifiable, Quantity, QuantityValue
dbpediaMatch	_0..* uri	AngleUnit, BinaryPrefix, CardinalityType, Comment, ContextualUnit, CountingUnit, CurrencyUnit, DecimalPrefix, DerivedUnit, DimensionlessUnit, EndianType, EnumeratedValue, LogarithmicUnit, NISTSP811Comment, OrderedType, PlaneAngleUnit, Prefix, QuantityKind, QuantityType, Rule, RuleType, ScaleType, SolidAngleUnit, SystemOfUnits, TransformType, Unit, Verifiable
default The default element in an enumeration	_0..* string	Enumeration
definedUnitOfSystem This property relates a unit of measure with the unit system that defines the unit.	_0..* SystemOfUnits	AngleUnit, ContextualUnit, CountingUnit, CurrencyUnit, DerivedUnit, DimensionlessUnit, LogarithmicUnit, PlaneAngleUnit, SolidAngleUnit, Unit
denominatorDimensionVector	_0..* QuantityKindDimensionVector
deprecated	_0..* string	AbstractQuantityKind, BaseDimensionMagnitude, BitEncodingType, BooleanEncodingType, ByteEncodingType, CharEncodingType, Citation, Concept, DataItem, Datatype, Discipline, Encoding, EnumeratedQuantity, Enumeration, EnumerationScale, Figure, FloatingPointEncodingType, IntegerEncodingType, IntervalScale, MathsFunctionType, NominalScale, OrdinalScale, Organization, QuantityKindDimensionVector, QuantityKindDimensionVectorCGS, QuantityKindDimensionVectorCGS-EMU, QuantityKindDimensionVectorCGS-ESU, QuantityKindDimensionVectorCGS-GAUSS, QuantityKindDimensionVectorCGS-LH, QuantityKindDimensionVectorISO, QuantityKindDimensionVectorImperial, QuantityKindDimensionVectorSI, RatioScale, ScalarDatatype, Scale, Symbol, SystemOfQuantityKinds, UserQuantityKind
derivedCoherentUnitOfSystem This property relates a unit of measure to the unit system in which the unit is derived from the system's base units with a proportionality constant of one.	_0..* SystemOfUnits	AngleUnit, ContextualUnit, CountingUnit, CurrencyUnit, DerivedUnit, DimensionlessUnit, LogarithmicUnit, PlaneAngleUnit, SolidAngleUnit, Unit
derivedNonCoherentUnitOfSystem This property relates a unit of measure to the unit system in which the unit is derived from the system's base units without proportionality constant of one.	_0..* SystemOfUnits
derivedUnitOfSystem This property relates a unit of measure to the system of units in which it is defined as a derived unit. That is, the derived unit is defined as a product of the base units for the system raised to some rational power.	_0..* SystemOfUnits	AngleUnit, ContextualUnit, CountingUnit, CurrencyUnit, DerivedUnit, DimensionlessUnit, LogarithmicUnit, PlaneAngleUnit, SolidAngleUnit, Unit
dimensionExponent	_0..* string
dimensionExponentForAmountOfSubstance	_0..* string	QuantityKindDimensionVector, QuantityKindDimensionVectorCGS, QuantityKindDimensionVectorCGS-EMU, QuantityKindDimensionVectorCGS-ESU, QuantityKindDimensionVectorCGS-GAUSS, QuantityKindDimensionVectorCGS-LH, QuantityKindDimensionVectorISO, QuantityKindDimensionVectorImperial, QuantityKindDimensionVectorSI
dimensionExponentForElectricCurrent	_0..* string	QuantityKindDimensionVector, QuantityKindDimensionVectorCGS, QuantityKindDimensionVectorCGS-EMU, QuantityKindDimensionVectorCGS-ESU, QuantityKindDimensionVectorCGS-GAUSS, QuantityKindDimensionVectorCGS-LH, QuantityKindDimensionVectorISO, QuantityKindDimensionVectorImperial, QuantityKindDimensionVectorSI
dimensionExponentForLength	_0..* string	QuantityKindDimensionVector, QuantityKindDimensionVectorCGS, QuantityKindDimensionVectorCGS-EMU, QuantityKindDimensionVectorCGS-ESU, QuantityKindDimensionVectorCGS-GAUSS, QuantityKindDimensionVectorCGS-LH, QuantityKindDimensionVectorISO, QuantityKindDimensionVectorImperial, QuantityKindDimensionVectorSI
dimensionExponentForLuminousIntensity	_0..* string	QuantityKindDimensionVector, QuantityKindDimensionVectorCGS, QuantityKindDimensionVectorCGS-EMU, QuantityKindDimensionVectorCGS-ESU, QuantityKindDimensionVectorCGS-GAUSS, QuantityKindDimensionVectorCGS-LH, QuantityKindDimensionVectorISO, QuantityKindDimensionVectorImperial, QuantityKindDimensionVectorSI
dimensionExponentForMass	_0..* string	QuantityKindDimensionVector, QuantityKindDimensionVectorCGS, QuantityKindDimensionVectorCGS-EMU, QuantityKindDimensionVectorCGS-ESU, QuantityKindDimensionVectorCGS-GAUSS, QuantityKindDimensionVectorCGS-LH, QuantityKindDimensionVectorISO, QuantityKindDimensionVectorImperial, QuantityKindDimensionVectorSI
dimensionExponentForThermodynamicTemperature	_0..* string	QuantityKindDimensionVector, QuantityKindDimensionVectorCGS, QuantityKindDimensionVectorCGS-EMU, QuantityKindDimensionVectorCGS-ESU, QuantityKindDimensionVectorCGS-GAUSS, QuantityKindDimensionVectorCGS-LH, QuantityKindDimensionVectorISO, QuantityKindDimensionVectorImperial, QuantityKindDimensionVectorSI
dimensionExponentForTime	_0..* string	QuantityKindDimensionVector, QuantityKindDimensionVectorCGS, QuantityKindDimensionVectorCGS-EMU, QuantityKindDimensionVectorCGS-ESU, QuantityKindDimensionVectorCGS-GAUSS, QuantityKindDimensionVectorCGS-LH, QuantityKindDimensionVectorISO, QuantityKindDimensionVectorImperial, QuantityKindDimensionVectorSI
dimensionInverse	_0..* string
dimensionVectorForSI	_0..* QuantityKindDimensionVectorSI	QuantityKind
dimensionlessExponent	_0..* string	QuantityKindDimensionVector, QuantityKindDimensionVectorCGS, QuantityKindDimensionVectorCGS-EMU, QuantityKindDimensionVectorCGS-ESU, QuantityKindDimensionVectorCGS-GAUSS, QuantityKindDimensionVectorCGS-LH, QuantityKindDimensionVectorISO, QuantityKindDimensionVectorImperial, QuantityKindDimensionVectorSI
element An element of an enumeration	_0..* string	Enumeration
elementKind	_0..* string
encoding	_0..* string	DataEncoding
enumeratedValue	_0..* EnumeratedValue	EnumeratedQuantity
enumeration	_0..* Enumeration	EnumeratedQuantity
exactConstant	_0..* string	ConstantValue, PhysicalConstant
exactMatch	_0..* string	AngleUnit, BinaryPrefix, ContextualUnit, CountingUnit, CurrencyUnit, DecimalPrefix, DerivedUnit, DimensionlessUnit, LogarithmicUnit, PhysicalConstant, PlaneAngleUnit, Prefix, QuantityKind, SolidAngleUnit, Unit
example	_0..* string
exponent This property relates a factor unit its exponent	_0..* string
expression	_0..* string
factorUnitScalar For a derived unit that is not exactly the product of its factor units, this property defines the scalar with which that product has to be multiplied with.	_0..* string	AngleUnit, ContextualUnit, CountingUnit, CurrencyUnit, DerivedUnit, DimensionlessUnit, LogarithmicUnit, PlaneAngleUnit, SolidAngleUnit, Unit
fieldCode	_0..* string
figure Provides a link to an image.	_0..* Figure
figureCaption	_0..* string	Figure
figureLabel	_0..* string	Figure
graphName	_0..* string
graphTitle	_0..* string
guidance	_0..* string	AbstractQuantityKind, AngleUnit, BaseDimensionMagnitude, BinaryPrefix, BitEncodingType, BooleanEncodingType, ByteEncodingType, CardinalityType, CharEncodingType, Citation, Concept, ConstantValue, ContextualUnit, CountingUnit, CurrencyUnit, DataItem, Datatype, DecimalPrefix, DerivedUnit, DimensionlessUnit, Discipline, Encoding, EndianType, EnumeratedQuantity, EnumeratedValue, Enumeration, EnumerationScale, Figure, FloatingPointEncodingType, IntegerEncodingType, IntervalScale, LogarithmicUnit, MathsFunctionType, NominalScale, NumericUnion, OrderedType, OrdinalScale, Organization, PhysicalConstant, PlaneAngleUnit, Prefix, Quantity, QuantityKind, QuantityKindDimensionVector, QuantityKindDimensionVectorCGS, QuantityKindDimensionVectorCGS-EMU, QuantityKindDimensionVectorCGS-ESU, QuantityKindDimensionVectorCGS-GAUSS, QuantityKindDimensionVectorCGS-LH, QuantityKindDimensionVectorISO, QuantityKindDimensionVectorImperial, QuantityKindDimensionVectorSI, QuantityType, QuantityValue, RatioScale, Rule, RuleType, ScalarDatatype, Scale, ScaleType, SolidAngleUnit, Symbol, SystemOfQuantityKinds, SystemOfUnits, TransformType, Unit, UserQuantityKind
hasAllowedUnit This property relates a unit system with a unit of measure that is not defined by or part of the system, but is allowed for use within the system. An allowed unit must be convertible to some dimensionally eqiuvalent unit that is defined by the system.	_0..* Unit	SystemOfUnits
hasBaseQuantityKind	_0..* QuantityKind	BaseDimensionMagnitude, SystemOfQuantityKinds
hasBaseUnit This property relates a system of units to a base unit defined within the system. The base units of a system are used to define the derived units of the system by expressing the derived units as products of the base units raised to a rational power.	_0..* Unit	SystemOfUnits
hasCitation	_0..* string
hasCoherentUnit A coherent unit of measurement for a unit system is a defined unit that may be expressed as a product of powers of the system's base units with the proportionality factor of one.	_0..* Unit	SystemOfUnits
hasDefinedUnit This property relates a unit system with a unit of measure that is defined by the system.	_0..* Unit	SystemOfUnits
hasDenominatorPart	_0..* string
hasDerivedCoherentUnit	_0..* Unit	SystemOfUnits
hasDerivedNonCoherentUnit	_0..* string
hasDerivedUnit This property relates a system of units to a unit of measure that is defined within the system in terms of the base units for the system. That is, the derived unit is defined as a product of the base units for the system raised to some rational power.	_0..* string	SystemOfUnits
hasDimension	_0..* string
hasDimensionExpression	_0..* string
hasDimensionVector	_0..* QuantityKindDimensionVector	AngleUnit, ContextualUnit, CountingUnit, CurrencyUnit, DerivedUnit, DimensionlessUnit, LogarithmicUnit, PhysicalConstant, PlaneAngleUnit, QuantityKind, SolidAngleUnit, Unit
hasFactorUnit This property relates a derived unit to one of its constituent factor units	_0..* string	AngleUnit, ContextualUnit, CountingUnit, CurrencyUnit, DerivedUnit, DimensionlessUnit, LogarithmicUnit, PlaneAngleUnit, SolidAngleUnit, Unit
hasNumeratorPart	_0..* string
hasPrefixUnit	_0..* Unit
hasQuantity	_0..* Quantity
hasQuantityKind	_0..* QuantityKind	AngleUnit, ContextualUnit, CountingUnit, CurrencyUnit, DerivedUnit, DimensionlessUnit, LogarithmicUnit, PhysicalConstant, PlaneAngleUnit, Quantity, SolidAngleUnit, SystemOfQuantityKinds, Unit, UserQuantityKind
hasReciprocalUnit	_0..* Unit	AngleUnit, ContextualUnit, CountingUnit, CurrencyUnit, DerivedUnit, DimensionlessUnit, LogarithmicUnit, PlaneAngleUnit, SolidAngleUnit, Unit
hasReferenceQuantityKind	_0..* string	QuantityKindDimensionVector, QuantityKindDimensionVectorCGS, QuantityKindDimensionVectorCGS-EMU, QuantityKindDimensionVectorCGS-ESU, QuantityKindDimensionVectorCGS-GAUSS, QuantityKindDimensionVectorCGS-LH, QuantityKindDimensionVectorISO, QuantityKindDimensionVectorImperial, QuantityKindDimensionVectorSI
hasRule	_0..* string	AbstractQuantityKind, BaseDimensionMagnitude, BitEncodingType, BooleanEncodingType, ByteEncodingType, CharEncodingType, Citation, Concept, DataItem, Datatype, Discipline, Encoding, EnumeratedQuantity, Enumeration, EnumerationScale, Figure, FloatingPointEncodingType, IntegerEncodingType, IntervalScale, MathsFunctionType, NominalScale, OrdinalScale, Organization, QuantityKindDimensionVector, QuantityKindDimensionVectorCGS, QuantityKindDimensionVectorCGS-EMU, QuantityKindDimensionVectorCGS-ESU, QuantityKindDimensionVectorCGS-GAUSS, QuantityKindDimensionVectorCGS-LH, QuantityKindDimensionVectorISO, QuantityKindDimensionVectorImperial, QuantityKindDimensionVectorSI, RatioScale, ScalarDatatype, Scale, Symbol, SystemOfQuantityKinds, UserQuantityKind
hasUnit This property relates a factor unit to its unit or a system of units with a unit of measure that is either a) defined by the system, or b) accepted for use by the system and is convertible to a unit of equivalent dimension that is defined by the system. Systems of units may distinguish between base and derived units. Base units are the units which measure the base quantities for the corresponding system of quantities. The base units are used to define units for all other quantities as products of powers of the base units. Such units are called derived units for the system.	_0..* Unit	ConstantValue, PhysicalConstant, Quantifiable, Quantity, QuantityValue, SystemOfUnits
hasUnitSystem	_0..* string	SystemOfQuantityKinds
hasVocabulary	_0..* Ontology
height	_0..* string	Figure
iec61360Code	_0..* string	AngleUnit, ContextualUnit, CountingUnit, CurrencyUnit, DerivedUnit, DimensionlessUnit, LogarithmicUnit, PlaneAngleUnit, QuantityKind, SolidAngleUnit, Unit
image	_0..* string	Figure
imageLocation	_0..* string	Figure
informativeReference	_0..* uri
isDeltaQuantity	_0..* string	PhysicalConstant, Quantity
isDimensionInSystem	_0..* string
isMetadataFor	_0..* string
isMetricUnit	_0..* string
isReplacedBy	_0..* string	AbstractQuantityKind, BaseDimensionMagnitude, BitEncodingType, BooleanEncodingType, ByteEncodingType, CharEncodingType, Citation, Concept, DataItem, Datatype, Discipline, Encoding, EnumeratedQuantity, Enumeration, EnumerationScale, Figure, FloatingPointEncodingType, IntegerEncodingType, IntervalScale, MathsFunctionType, NominalScale, OrdinalScale, Organization, QuantityKindDimensionVector, QuantityKindDimensionVectorCGS, QuantityKindDimensionVectorCGS-EMU, QuantityKindDimensionVectorCGS-ESU, QuantityKindDimensionVectorCGS-GAUSS, QuantityKindDimensionVectorCGS-LH, QuantityKindDimensionVectorISO, QuantityKindDimensionVectorImperial, QuantityKindDimensionVectorSI, RatioScale, ScalarDatatype, Scale, Symbol, SystemOfQuantityKinds, UserQuantityKind
isUnitOfSystem This property relates a unit of measure with a system of units that either a) defines the unit or b) allows the unit to be used within the system.	_0..* SystemOfUnits	AngleUnit, ContextualUnit, CountingUnit, CurrencyUnit, DerivedUnit, DimensionlessUnit, LogarithmicUnit, PlaneAngleUnit, SolidAngleUnit, Unit
isoNormativeReference Provides a way to reference the ISO unit definition.	_0..* string	AngleUnit, BinaryPrefix, CardinalityType, Comment, ContextualUnit, CountingUnit, CurrencyUnit, DecimalPrefix, DerivedUnit, DimensionlessUnit, EndianType, EnumeratedValue, LogarithmicUnit, NISTSP811Comment, OrderedType, PhysicalConstant, PlaneAngleUnit, Prefix, QuantityKind, QuantityType, Rule, RuleType, ScaleType, SolidAngleUnit, SystemOfUnits, TransformType, Unit, Verifiable
javaName	_0..* string	Datatype, ScalarDatatype
jsName	_0..* string	Datatype, ScalarDatatype
landscape	_0..* string	Figure
latexDefinition	_0..* string	AngleUnit, ContextualUnit, CountingUnit, CurrencyUnit, DerivedUnit, DimensionlessUnit, LogarithmicUnit, PhysicalConstant, PlaneAngleUnit, QuantityKind, QuantityKindDimensionVector, QuantityKindDimensionVectorCGS, QuantityKindDimensionVectorCGS-EMU, QuantityKindDimensionVectorCGS-ESU, QuantityKindDimensionVectorCGS-GAUSS, QuantityKindDimensionVectorCGS-LH, QuantityKindDimensionVectorISO, QuantityKindDimensionVectorImperial, QuantityKindDimensionVectorSI, SolidAngleUnit, Unit
latexSymbol The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.	_0..* string	AbstractQuantityKind, AngleUnit, BinaryPrefix, ContextualUnit, CountingUnit, CurrencyUnit, DecimalPrefix, DerivedUnit, DimensionlessUnit, LogarithmicUnit, PhysicalConstant, PlaneAngleUnit, Prefix, QuantityKindDimensionVector, QuantityKindDimensionVectorCGS, QuantityKindDimensionVectorCGS-EMU, QuantityKindDimensionVectorCGS-ESU, QuantityKindDimensionVectorCGS-GAUSS, QuantityKindDimensionVectorCGS-LH, QuantityKindDimensionVectorISO, QuantityKindDimensionVectorImperial, QuantityKindDimensionVectorSI, SolidAngleUnit, Unit, UserQuantityKind
length	_0..* string	ScalarDatatype
literal	_0..* string	CardinalityType, OrderedType
lowerBound	_0..* string
mathDefinition	_0..* string
mathMLdefinition	_0..* string	AngleUnit, ContextualUnit, CountingUnit, CurrencyUnit, DerivedUnit, DimensionlessUnit, LogarithmicUnit, PhysicalConstant, PlaneAngleUnit, QuantityKind, SolidAngleUnit, Unit
matlabName	_0..* string	Datatype, ScalarDatatype
maxCardinality	_0..* string
maxExclusive maxExclusive is the exclusive upper bound of the value space for a datatype with the ordered property. The value of maxExclusive must be in the value space of the base type or be equal to {value} in {base type definition}.	_0..* string	ScalarDatatype
maxInclusive maxInclusive is the inclusive upper bound of the value space for a datatype with the ordered property. The value of maxInclusive must be in the value space of the base type.	_0..* string	ScalarDatatype
microsoftSQLServerName	_0..* string	Datatype, ScalarDatatype
minCardinality	_0..* string
minExclusive minExclusive is the exclusive lower bound of the value space for a datatype with the ordered property. The value of minExclusive must be in the value space of the base type or be equal to {value} in {base type definition}.	_0..* string	ScalarDatatype
minInclusive minInclusive is the inclusive lower bound of the value space for a datatype with the ordered property. The value of minInclusive must be in the value space of the base type.	_0..* string	ScalarDatatype
modified	_0..* date
mySQLName	_0..* string	Datatype, ScalarDatatype
negativeDeltaLimit A negative change limit between consecutive sample values for a parameter. The Negative Delta may be the encoded value or engineering units value depending on whether or not a Calibrator is defined.	_0..* string
normativeReference Provides a way to reference information that is an authoritative source providing a standard definition	_0..* string	AngleUnit, BinaryPrefix, CardinalityType, Comment, ContextualUnit, CountingUnit, CurrencyUnit, DecimalPrefix, DerivedUnit, DimensionlessUnit, EndianType, EnumeratedValue, LogarithmicUnit, NISTSP811Comment, OrderedType, PhysicalConstant, PlaneAngleUnit, Prefix, QuantityKind, QuantityType, Rule, RuleType, ScaleType, SolidAngleUnit, SystemOfUnits, TransformType, Unit, Verifiable
numeratorDimensionVector	_0..* QuantityKindDimensionVector
numericValue	_0..* NumericUnion
odbcName	_0..* string	Datatype, ScalarDatatype
oleDBName OLE DB (Object Linking and Embedding, Database, sometimes written as OLEDB or OLE-DB), an API designed by Microsoft, allows accessing data from a variety of sources in a uniform manner. The API provides a set of interfaces implemented using the Component Object Model (COM); it is otherwise unrelated to OLE.	_0..* string	Datatype, ScalarDatatype
omUnit	_0..* string	AngleUnit, ContextualUnit, CountingUnit, CurrencyUnit, DerivedUnit, DimensionlessUnit, LogarithmicUnit, PlaneAngleUnit, SolidAngleUnit, Unit
onlineReference	_0..* string
oracleSQLName	_0..* string	Datatype, ScalarDatatype
order	_0..* string	OrdinalScale
orderedType	_0..* string	Datatype, ScalarDatatype
outOfScope	_0..* string
pattern	_0..* string
permissibleMaths	_0..* string	EnumerationScale, IntervalScale, NominalScale, OrdinalScale, RatioScale, Scale, ScaleType
permissibleTransformation	_0..* string	EnumerationScale, IntervalScale, NominalScale, OrdinalScale, RatioScale, Scale, ScaleType
plainTextDescription A plain text description is used to provide a description with only simple ASCII characters for cases where LaTeX , HTML or other markup would not be appropriate.	_0..* string	AbstractQuantityKind, BaseDimensionMagnitude, BitEncodingType, BooleanEncodingType, ByteEncodingType, CharEncodingType, Citation, Concept, DataItem, Datatype, Discipline, Encoding, EnumeratedQuantity, Enumeration, EnumerationScale, Figure, FloatingPointEncodingType, IntegerEncodingType, IntervalScale, MathsFunctionType, NominalScale, OrdinalScale, Organization, QuantityKindDimensionVector, QuantityKindDimensionVectorCGS, QuantityKindDimensionVectorCGS-EMU, QuantityKindDimensionVectorCGS-ESU, QuantityKindDimensionVectorCGS-GAUSS, QuantityKindDimensionVectorCGS-LH, QuantityKindDimensionVectorISO, QuantityKindDimensionVectorImperial, QuantityKindDimensionVectorSI, RatioScale, ScalarDatatype, Scale, Symbol, SystemOfQuantityKinds, UserQuantityKind
positiveDeltaLimit A positive change limit between consecutive sample values for a parameter. The Positive Delta may be the encoded value or engineering units value depending on whether or not a Calibrator is defined.	_0..* string
prefix	_0..* Prefix	AngleUnit, ContextualUnit, CountingUnit, CurrencyUnit, DerivedUnit, DimensionlessUnit, LogarithmicUnit, PlaneAngleUnit, SolidAngleUnit, SystemOfUnits, Unit
prefixMultiplier	_0..* string	BinaryPrefix, DecimalPrefix, Prefix
prefixMultiplierSN	_0..* string
protocolBuffersName	_0..* string	Datatype, ScalarDatatype
pythonName	_0..* string	Datatype, ScalarDatatype
qkdvDenominator	_0..* QuantityKindDimensionVector	AngleUnit, ContextualUnit, CountingUnit, CurrencyUnit, DerivedUnit, DimensionlessUnit, LogarithmicUnit, PlaneAngleUnit, QuantityKind, SolidAngleUnit, Unit
qkdvNumerator	_0..* QuantityKindDimensionVector	AngleUnit, ContextualUnit, CountingUnit, CurrencyUnit, DerivedUnit, DimensionlessUnit, LogarithmicUnit, PlaneAngleUnit, QuantityKind, SolidAngleUnit, Unit
quantity a property to relate an observable thing with a quantity (qud:Quantity)	_0..* string
quantityValue	_0..* QuantityValue	PhysicalConstant, Quantity
rationale	_0..* string	Comment, NISTSP811Comment, Rule
rdfsDatatype	_0..* string	ScalarDatatype
reference	_0..* string
referenceUnit	_0..* string
relativeStandardUncertainty The relative standard uncertainty of a measurement is the (absolute) standard uncertainty divided by the magnitude of the exact value.	_0..* string	ConstantValue, PhysicalConstant, Quantifiable, Quantity, QuantityValue
relevantQuantityKind	_0..* QuantityKind
relevantUnit	_0..* Unit
rights	_0..* string
ruleType	_0..* string	Rule
scaleType	_0..* string	EnumerationScale, IntervalScale, NominalScale, OrdinalScale, RatioScale, Scale
scalingOf This property relates a unit to another unit it is scaled from	_0..* string	AngleUnit, ContextualUnit, CountingUnit, CurrencyUnit, DerivedUnit, DimensionlessUnit, LogarithmicUnit, PlaneAngleUnit, SolidAngleUnit, Unit
siExactMatch	_0..* string
siUnitsExpression	_0..* string	AngleUnit, ContextualUnit, CountingUnit, CurrencyUnit, DerivedUnit, DimensionlessUnit, LogarithmicUnit, PlaneAngleUnit, SolidAngleUnit, Unit
source	_0..* uri
standardUncertainty The standard uncertainty of a quantity is the estimated standard deviation of the mean taken from a series of measurements.	_0..* string	ConstantValue, PhysicalConstant, Quantifiable, Quantity, QuantityValue
standardUncertaintySN The standard uncertainty of a quantity is the estimated standard deviation of the mean taken from a series of measurements.	_0..* string	ConstantValue, PhysicalConstant, Quantifiable, Quantity, QuantityValue
subject	_0..* string
supersededBy	_0..* string
symbol The symbol is a glyph that is used to represent some concept, typically a unit or a quantity, in a compact form. For example, the symbol for an Ohm is $ohm$. This contrasts with 'unit:abbreviation', which gives a short alphanumeric abbreviation for the unit, 'ohm' for Ohm.	_0..* string	AbstractQuantityKind, AngleUnit, BinaryPrefix, CardinalityType, ContextualUnit, CountingUnit, CurrencyUnit, DecimalPrefix, DerivedUnit, DimensionlessUnit, EndianType, EnumeratedValue, LogarithmicUnit, OrderedType, PhysicalConstant, PlaneAngleUnit, Prefix, QuantityType, RuleType, ScaleType, SolidAngleUnit, TransformType, Unit, UserQuantityKind
systemDefinition	_0..* string
systemDerivedQuantityKind	_0..* QuantityKind	SystemOfQuantityKinds
systemDimension	_0..* string
title	_0..* string
ucumCode ucumCode associates a QUDT unit with its UCUM code (case-sensitive). In SHACL the values are derived from specific ucum properties using 'sh:values'.	_0..* string	AngleUnit, BinaryPrefix, ContextualUnit, CountingUnit, CurrencyUnit, DecimalPrefix, DerivedUnit, DimensionlessUnit, LogarithmicUnit, PhysicalConstant, PlaneAngleUnit, Prefix, SolidAngleUnit, Unit
udunitsCode The UDUNITS package supports units of physical quantities. Its C library provides for arithmetic manipulation of units and for conversion of numeric values between compatible units. The package contains an extensive unit database, which is in XML format and user-extendable. The package also contains a command-line utility for investigating units and converting values.	_0..* string	AngleUnit, ContextualUnit, CountingUnit, CurrencyUnit, DerivedUnit, DimensionlessUnit, LogarithmicUnit, PlaneAngleUnit, SolidAngleUnit, Unit
uneceCommonCode The UN/CEFACT Recommendation 20 provides three character alphabetic and alphanumeric codes for representing units of measurement for length, area, volume/capacity, mass (weight), time, and other quantities used in international trade. The codes are intended for use in manual and/or automated systems for the exchange of information between participants in international trade.	_0..* string	AngleUnit, ContextualUnit, CountingUnit, CurrencyUnit, DerivedUnit, DimensionlessUnit, LogarithmicUnit, PlaneAngleUnit, SolidAngleUnit, Unit
unitFor	_0..* string	AngleUnit, ContextualUnit, CountingUnit, CurrencyUnit, DerivedUnit, DimensionlessUnit, LogarithmicUnit, PlaneAngleUnit, SolidAngleUnit, Unit
upperBound	_0..* string
url	_0..* string	Citation, Organization
value A property to relate an observable thing with a value of any kind	_0..* string	ConstantValue, DataItem, PhysicalConstant, Quantifiable, Quantity, QuantityType, QuantityValue
valueQuantity	_0..* string
valueSN A property to relate an observable thing with a value of any kind	_0..* string	ConstantValue, PhysicalConstant, Quantifiable, Quantity, QuantityValue
vbName	_0..* string	Datatype, ScalarDatatype
vectorMagnitude	_0..* string	BaseDimensionMagnitude
wasDerivedFrom	_0..* Concept
website	_0..* string
width	_0..* string	Figure
wikidataMatch	_0..* uri	AngleUnit, BinaryPrefix, CardinalityType, Comment, ContextualUnit, CountingUnit, CurrencyUnit, DecimalPrefix, DerivedUnit, DimensionlessUnit, EndianType, EnumeratedValue, LogarithmicUnit, NISTSP811Comment, OrderedType, PlaneAngleUnit, Prefix, QuantityKind, QuantityType, Rule, RuleType, ScaleType, SolidAngleUnit, SystemOfUnits, TransformType, Unit, Verifiable