Icon class icon_class fas fa-quote-left icon_class_computed fas fa-quote-left Related content REFERENCE CARD: QUDV - basic metamodel QuantityKind and ValueType example - length vs radius vs radius of tire QuantityKind and ValueType example - frequency vs clock frequency vs sound frequency Source OMG Systems Modeling Language (SysML) 1.6 Copyright information About Object Management Group copyright in text extracts quoted from OMG specifications for educational purposes Snippet kind INFO SysML keywords QuantityKind Unit Unit::quantityKind ValueType::quantityKind Keywords scientific unit system VIM3 Previous snippet QuantityKind, or a specialization of it, classifies an InstanceSpecification to define a particular "kind-of-quantity" in the sense of an "aspect common to mutually comparable quantities" [VIM3-1.2], ... Full quote ... a SysML value property is understood to correspond to the VIM concept of "quantity" defined as a "property of a phenomenon, body or substance, where the property has a magnitude that can be expressed as a number and a reference" [VIM3-1.1]. Next snippet Modelers specialize QuantityKind as done in SysMLs QUDV model library or in a similar manner in other model libraries. Related snippets SysML ValueType adds an ability to carry a unit of measure and quantity kind associated with the value. A quantity kind is a kind of quantity that may be stated in terms of defined units, but does not restrict the selection of a unit to state the value. A unit is a particular value in terms of which a quantity of the same quantity kind may be expressed. quantityKind : InstanceSpecification [0..1] A kind of quantity, represented by an InstanceSpecification classified by a kind of SysML QuantityKind, that may be stated by means of units. A value type may optionally specify a quantity kind without any unit. unit : InstanceSpecification [0..1] A unit, represented by an InstanceSpecification classified by a kind of SysML Unit, in terms of which the magnitudes of other quantities that have the same quantity kind can be stated. 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. QuantityKind is defined as a non-abstract SysML Block defined in the SysML UnitAndQuantityKind model library. QuantityKind is defined as a non-abstract SysML Block defined in the SysML UnitAndQuantityKind model library. Related snippets (backlinks) Visit also Visit also (backlinks) Flags
