Quantities and Units Ontology

Classes ↑

base quantity
base unit
derived quantity
derived unit
dimensionality
measurement unit
quantity
quantity kind
quantity kind factor
quantity value
system of quantities
system of units
unit factor

base quantity^c # Classes

URI	`https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/BaseQuantity`
Is Defined By	https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/
Description	quantity kind in a conventionally chosen subset of a given system of quantities, where no subset quantity can be expressed in terms of the others
Example(s)	The International System of Quantities (ISQ) comprises these base quantities (with their SI base measurement units): length (meter), mass (kilogram), duration (second), electric current (ampere), thermodynamic temperature (kelvin), amount of substance (mole), and luminous intensity (candela). These base quantities are not mutually comparable. All quantities of any one of these kinds are, however, mutually comparable.
Super-classes	quantity kind^c
Restrictions	fibo-fnd-rel-rel:isDefinedIn exactly 1 system of quantities^c

base unit^c # Classes

URI	`https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/BaseUnit`
Is Defined By	https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/
Description	measurement unit that is defined by a system of units to be the reference measurement unit for a base quantity
Super-classes	measurement unit^c

derived quantity^c # Classes

URI	`https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/DerivedQuantity`
Is Defined By	https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/
Description	quantity kind that may be defined as a product of powers of one or more other kinds of quantity
Example(s)	velocity (length/time), mass density (mass/length3)
Super-classes	quantity kind^c
Restrictions	is derived from^op some (base quantity^c or derived quantity^c) has factor^op some quantity kind factor^c

derived unit^c # Classes

URI	`https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/DerivedUnit`
Is Defined By	https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/
Description	measurement unit that is defined with respect to one or more base units, such as as a product of powers of one or more other measurement units
Example(s)	1 minute = 60 seconds For example velocity can be specified as the product of length to the power one times time to the power minus one, and subsequently speed can be specified as velocity to the power one.
Super-classes	measurement unit^c
Restrictions	is derived from^op some base unit^c has factor^op some unit factor^c

dimensionality^c # Classes

URI	`https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/Dimensionality`
Is Defined By	https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/
Description	classifier that represents a set of equivalent units of measure
Super-classes	fibo-fnd-arr-cls:Classifier^c
Restrictions	has factor^op min 0 quantity kind factor^c
In range of	has dimension^op

measurement unit^c # Classes

URI	`https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/MeasurementUnit`
Is Defined By	https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/
Description	quantity, defined and adopted by convention, with which any other quantity of the same kind can be compared to express the ratio of the two quantities as a number
Example(s)	week, day, hour, minute, second, kilogram, joule, meter
Super-classes	quantity^c
Restrictions	specializes^op min 0 measurement unit^c fibo-fnd-rel-rel:isDefinedIn some system of units^c
Sub-classes	derived unit^c base unit^c
In range of	has measurement unit^op

quantity^c # Classes

URI	`https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/Quantity`
Is Defined By	https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/
Description	property of a phenomenon, body, or substance, to which a number can be assigned with respect to a reference
Example(s)	second, kilogram, joule, meter. These are quantities in a general sense, which is what is meant here by quantity.
Restrictions	has quantity kind^op some quantity kind^c
Sub-classes	measurement unit^c

quantity kind^c # Classes

URI	`https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/QuantityKind`
Is Defined By	https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/
Description	classifier for 'quantity' that characterizes quantities as being mutually comparable
Super-classes	fibo-fnd-arr-cls:Classifier^c
Restrictions	has measurement unit^op min 0 measurement unit^c specializes^op min 0 quantity kind^c
Sub-classes	base quantity^c derived quantity^c
In domain of	has dimension^op
In range of	has quantity kind^op

quantity kind factor^c # Classes

URI	`https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/QuantityKindFactor`
Is Defined By	https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/
Description	factor in a product of powers that defines a derived quantity
Super-classes	fibo-fnd-arr-cls:Classifier^c
Restrictions	has exponent^dp exactly 1 has quantity kind^op exactly 1 quantity kind^c

quantity value^c # Classes

URI	`https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/QuantityValue`
Is Defined By	https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/
Description	number and measurement unit together giving magnitude of a quantity
Example(s)	2 days, 3.5 hours, 150 lb, 45.5 miles
Restrictions	has measurement unit^op max 1 measurement unit^c has numeric value^dp exactly 1
In range of	has quantity value^op

system of quantities^c # Classes

URI	`https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/SystemOfQuantities`
Is Defined By	https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/
Description	set of quantities together with a set of non-contradictory equations relating those quantities
Example(s)	The International System of Quantities (ISQ) is an example of a SystemOfQuantities, defined in ISO 31 and ISO/IEC 80000.
Super-classes	fibo-fnd-arr-cls:ClassificationScheme^c
Restrictions	fibo-fnd-rel-rel:comprises min 0 system of quantities^c fibo-fnd-rel-rel:defines some (base quantity^c or derived quantity^c) lcc-cr:uses min 0 system of quantities^c

system of units^c # Classes

URI	`https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/SystemOfUnits`
Is Defined By	https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/
Description	set of measurement units associated with a system of quantities, together with a set of rules that assign one measurement unit to be the base unit for each base quantity in the system of quantities and a set of rules for the derivation of other units from the base units
Example(s)	The International System of Units (SI) is a system of units.
Super-classes	fibo-fnd-arr-cls:ClassificationScheme^c
Restrictions	fibo-fnd-rel-rel:defines some measurement unit^c fibo-fnd-rel-rel:comprises min 0 system of units^c lcc-cr:uses min 0 system of units^c fibo-fnd-rel-rel:appliesTo exactly 1 system of quantities^c

unit factor^c # Classes

URI	`https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/UnitFactor`
Is Defined By	https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/
Description	factor in a product of powers that defines a derived unit
Super-classes	fibo-fnd-arr-cls:Classifier^c
Restrictions	has measurement unit^op exactly 1 measurement unit^c has exponent^dp exactly 1

has dimension^op # OPs

URI	`https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/hasDimension`
Is Defined By	https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/
Description	indicates a measurable extent associated with a given quantity kind in some system of quantities, which may be derived, depending on the choice of base quantity
Domain(s)	quantity kind^c
Range(s)	fibo-fnd-qt-qtu:Dimensionality^c

has factor^op # OPs

URI	`https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/hasFactor`
Is Defined By	https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/
Description	indicates a number or quantity that when multiplied with another produces a given number or expression

has measurement unit^op # OPs

URI	`https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/hasMeasurementUnit`
Is Defined By	https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/
Description	indicates the unit in which something is expressed
Range(s)	fibo-fnd-qt-qtu:MeasurementUnit^c

has quantity kind^op # OPs

URI	`https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/hasQuantityKind`
Is Defined By	https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/
Description	indicates the class of mutually comparable quantities involved in the definition of an individual quantity or factor
Range(s)	fibo-fnd-qt-qtu:QuantityKind^c

has quantity value^op # OPs

URI	`https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/hasQuantityValue`
Is Defined By	https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/
Description	relates something (an expression, formula, etc.) to its magnitude expressed as a number together with its unit of measure (if applicable)
Range(s)	fibo-fnd-qt-qtu:QuantityValue^c

is derived from^op # OPs

URI	`https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/isDerivedFrom`
Is Defined By	https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/
Description	indicates something from which the subject is obtained or determined
Example(s)	a derived quantity is derived from a base quantity; a derived unit is derived from a base unit

specializes^op # OPs

URI	`https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/specializes`
Is Defined By	https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/
Description	indicates something whose nature is more general (broader than) the subject

URI	`https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/hasExponent`
Is Defined By	https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/
Description	indicates the number of times a number should be multiplied by itself
Range(s)	owl:rational^c

URI	`https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/hasNumericValue`
Is Defined By	https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/
Description	indicates a value associated with something that is a number
Range(s)	xsd:decimal^c

Namespaces ↑

default (:): https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/
dct: http://purl.org/dc/terms/
fibo-fnd-arr-cls: https://spec.edmcouncil.org/fibo/ontology/FND/Arrangements/ClassificationSchemes/
fibo-fnd-rel-rel: https://spec.edmcouncil.org/fibo/ontology/FND/Relations/Relations/
fibo-fnd-utl-av: https://spec.edmcouncil.org/fibo/ontology/FND/Utilities/AnnotationVocabulary/
lcc-cr: https://www.omg.org/spec/LCC/Countries/CountryRepresentation/
owl: http://www.w3.org/2002/07/owl#
prov: http://www.w3.org/ns/prov#
rdf: http://www.w3.org/1999/02/22-rdf-syntax-ns#
rdfs: http://www.w3.org/2000/01/rdf-schema#
sdo: https://schema.org/
skos: http://www.w3.org/2004/02/skos/core#
sm: http://www.omg.org/techprocess/ab/SpecificationMetadata/
xsd: http://www.w3.org/2001/XMLSchema#

Quantities and Units Ontology

Metadata

Table of Contents

Overview

Classes ↑

base quantity^c # Classes

base unit^c # Classes

derived quantity^c # Classes

derived unit^c # Classes

dimensionality^c # Classes

measurement unit^c # Classes

quantity^c # Classes

quantity kind^c # Classes

quantity kind factor^c # Classes

quantity value^c # Classes

system of quantities^c # Classes

system of units^c # Classes

unit factor^c # Classes

Object Properties ↑

has dimension^op # OPs

has factor^op # OPs

has measurement unit^op # OPs

has quantity kind^op # OPs

has quantity value^op # OPs

is derived from^op # OPs

specializes^op # OPs

Datatype Properties ↑

has exponent^dp # DPs

has numeric value^dp # DPs

Namespaces ↑

Legend

^c	Classes
^op	Object Properties
^fp	Functional Properties
^dp	Data Properties
^dp	Annotation Properties
^p	Properties
ⁿⁱ	Named Individuals

Quantities and Units Ontology

Metadata

Table of Contents

Overview

Classes ↑

base quantityc # Classes

base unitc # Classes

derived quantityc # Classes

derived unitc # Classes

dimensionalityc # Classes

measurement unitc # Classes

quantityc # Classes

quantity kindc # Classes

quantity kind factorc # Classes

quantity valuec # Classes

system of quantitiesc # Classes

system of unitsc # Classes

unit factorc # Classes

Object Properties ↑

has dimensionop # OPs

has factorop # OPs

has measurement unitop # OPs

has quantity kindop # OPs

has quantity valueop # OPs

is derived fromop # OPs

specializesop # OPs

Datatype Properties ↑

has exponentdp # DPs

has numeric valuedp # DPs

Namespaces ↑

Legend

base quantity^c # Classes

base unit^c # Classes

derived quantity^c # Classes

derived unit^c # Classes

dimensionality^c # Classes

measurement unit^c # Classes

quantity^c # Classes

quantity kind^c # Classes

quantity kind factor^c # Classes

quantity value^c # Classes

system of quantities^c # Classes

system of units^c # Classes

unit factor^c # Classes

has dimension^op # OPs

has factor^op # OPs

has measurement unit^op # OPs

has quantity kind^op # OPs

has quantity value^op # OPs

is derived from^op # OPs

specializes^op # OPs

has exponent^dp # DPs

has numeric value^dp # DPs