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Quantities and Units Ontology
QName: fibo-fnd-qt-qtu:
This ontology provides an initial set of concepts supporting the representation of quantities, units, systems of quantities, and systems of units for use in FIBO. It is compatible with and can be mapped directly to the OMG Date Time Vocabulary (DTV) Quantities Ontology, but has been integrated into FND to provide local coverage of quantities and measurements and eliminate the SBVR mark-up.
http://opensource.org/licenses/MIT
http://www.w3.org/standards/techs/owl#w3c_all
Copyright (c) 2015-2019 EDM Council, Inc.
Copyright (c) 2015-2019 Object Management Group, Inc.
https://spec.edmcouncil.org/fibo/ontology/FND/Arrangements/Arrangements/
https://spec.edmcouncil.org/fibo/ontology/FND/Arrangements/ClassificationSchemes/
https://spec.edmcouncil.org/fibo/ontology/FND/Arrangements/Codes/
https://spec.edmcouncil.org/fibo/ontology/FND/Relations/Relations/
https://spec.edmcouncil.org/fibo/ontology/FND/Utilities/AnnotationVocabulary/
fibo-fnd-qt-qtu
QuantitiesAndUnits.rdf
The https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/ was modified to to rename (migrate) the hasDefinition property to isDefinedIn.
The https://spec.edmcouncil.org/fibo/ontology/FND/Quantities/QuantitiesAndUnits/ was modified to untangle this ontology from analytics, untangle quantity values (measurements) from measures and add refinements from SysML and ISO 11179, including dimensionality.
1
base quantity
QName: fibo-fnd-qt-qtu:BaseQuantity
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
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.
http://www.omg.org/spec/DTV/1.1/
https://www.omg.org/spec/SysML/1.5/
base unit
QName: fibo-fnd-qt-qtu:BaseUnit
measurement unit that is defined by a system of units to be the reference measurement unit for a base quantity
http://www.omg.org/spec/DTV/1.1/
https://www.omg.org/spec/SysML/1.5/
Quantity units that are not base units are derived units.
derived quantity
QName: fibo-fnd-qt-qtu:DerivedQuantity
quantity kind that may be defined as a product of powers of one or more other kinds of quantity
velocity (length/time), mass density (mass/length3)
http://www.omg.org/spec/DTV/1.1/
https://www.omg.org/spec/SysML/1.5/
A derived quantity may also be used to define a synonym kind of quantity for another kind of quantity.
derived unit
QName: fibo-fnd-qt-qtu:DerivedUnit
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
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.
http://www.omg.org/spec/DTV/1.1/
https://www.omg.org/spec/SysML/1.5/
Every derived unit is defined in terms of base units.
0
dimensionality
QName: fibo-fnd-qt-qtu:Dimensionality
classifier that represents a set of equivalent units of measure
ISO 11179-3:2013 Information technology - Metadata registries (MDR)
https://www.omg.org/spec/SysML/1.5/
Note that this definition is broader than that provided in SysML, which is an expression of the dependence of a quantity on the base quantities of a system of quantities as a product of powers of factors corresponding to the base quantities.
0
measurement unit
QName: fibo-fnd-qt-qtu:MeasurementUnit
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
week, day, hour, minute, second, kilogram, joule, meter
http://www.omg.org/spec/DTV/1.1/
https://www.omg.org/spec/SysML/1.5/
A Unit is a quantity in terms of which the magnitudes of other quantities that have the same quantity kind can be stated. A unit often relies on precise and reproducible ways to measure the unit. For example, a unit of length such as meter may be specified as a multiple of a particular wavelength of light. A unit may also specify less stable or precise ways to express some value, such as a cost expressed in some currency, or a severity rating measured by a numerical scale.
particular quantity
QName: fibo-fnd-qt-qtu:ParticularQuantity
true
a property that is of an individual thing and is quantifiable as an instance of some quantity kind
The weight of a given person, the mass of the Earth, the speed of light, and the distance between and are said to be "particular quantities."
http://www.omg.org/spec/DTV/1.1/
A particular quantity is given by a definite description, which identifies the individual thing and the property. Particular quantities are properties of particular things and are generally expressed by a term for the property and a quantity value.
quantity
QName: fibo-fnd-qt-qtu:Quantity
property of a phenomenon, body, or substance, to which a number can be assigned with respect to a reference
The term quantity is used here to refer to the abstraction of the properties - the amount of measurable stuff that can be compared between particular quantities. The height of the something refers to a particular quantity; 555 ft 5 inches refers to a quantity value.
second, kilogram, joule, meter. These are quantities in a general sense, which is what is meant here by quantity.
http://www.omg.org/spec/DTV/1.1/
https://www.omg.org/spec/SysML/1.5/
A quantity as defined here is said to be a "scalar" as distinct from a "vector." However, a vector or a tensor whose components are quantities is also considered to be a quantity.
0
quantity kind
QName: fibo-fnd-qt-qtu:QuantityKind
classifier for 'quantity' that characterizes quantities as being mutually comparable
http://www.omg.org/spec/DTV/1.1/
https://www.omg.org/spec/SysML/1.5/
A QuantityKind is a kind of quantity that may be stated by means of defined units. For example, the quantity kind of length may be measured by units of meters, kilometers, or feet.
Every instance of 'quantity kind' is also a specialization of 'quantity'. So the concept 'duration' is an instance of 'quantity kind' and it is a specialization of 'quantity', i.e., it is a classifier of actual quantities. But a given duration (i.e., the duration of something) is an instance of 'duration' and thus a 'particular quantity,' not an instance of 'quantity kind'. For example, a 'year' is not an instance of quantity kind; it is an instance of quantity, but not a category of quantity.
1
1
quantity kind factor
QName: fibo-fnd-qt-qtu:QuantityKindFactor
factor in a product of powers that defines a derived quantity
https://www.omg.org/spec/SysML/1.5/
1
1
quantity value
QName: fibo-fnd-qt-qtu:QuantityValue
number and measurement unit together giving magnitude of a quantity
2 days, 3.5 hours, 150 lb, 45.5 miles
http://www.omg.org/spec/DTV/1.1/
https://www.omg.org/spec/SysML/1.5/
The quantity expressed by a quantity value is the quantity whose ratio to the measurement unit is the number. Note that dimensionless quantities may not have a measurement unit associated with them.
measurement
rate
QName: fibo-fnd-qt-qtu:Rate
quantity measured with respect to some other quantity
http://www.icoachmath.com/math_dictionary/rate.html
http://www.thefreedictionary.com/rate
0
0
system of quantities
QName: fibo-fnd-qt-qtu:SystemOfQuantities
set of quantities together with a set of non-contradictory equations relating those quantities
The International System of Quantities (ISQ) is an example of a SystemOfQuantities, defined in ISO 31 and ISO/IEC 80000.
http://www.omg.org/spec/DTV/1.1/
https://www.omg.org/spec/SysML/1.5/
0
0
1
system of units
QName: fibo-fnd-qt-qtu:SystemOfUnits
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
The International System of Units (SI) is a system of units.
http://www.omg.org/spec/DTV/1.1/
https://www.omg.org/spec/SysML/1.5/
1
1
unit factor
QName: fibo-fnd-qt-qtu:UnitFactor
factor in a product of powers that defines a derived unit
https://www.omg.org/spec/SysML/1.5/
has dimension
QName: fibo-fnd-qt-qtu:hasDimension
indicates the dimension associated with a given quantity kind in some system of quantities (which may also be derived and depends on the choice of base quantity)
has exponent
QName: fibo-fnd-qt-qtu:hasExponent
indicates the number of times a number should be multiplied by itself
has factor
QName: fibo-fnd-qt-qtu:hasFactor
indicates a number or quantity that when multiplied with another produces a given number or expression
has measurement unit
QName: fibo-fnd-qt-qtu:hasMeasurementUnit
indicates the unit in which something is expressed
has numeric value
QName: fibo-fnd-qt-qtu:hasNumericValue
indicates a value associated with something that is a number
has quantity kind
QName: fibo-fnd-qt-qtu:hasQuantityKind
indicates the quantity kind involved in the definition of a quantity or factor
has quantity value
QName: fibo-fnd-qt-qtu:hasQuantityValue
relates something (an expression, formula, etc.) to its magnitude expressed as a number together with its unit of measure (if applicable)
is derived from
QName: fibo-fnd-qt-qtu:isDerivedFrom
indicates something that the subject is derived from: a derived quantity is derived from a base quantity; a derived unit is derived from a base unit
specializes
QName: fibo-fnd-qt-qtu:specializes
indicates something whose nature is more general (broader than) the subject