http://qudt.org/schema/qudt/AbstractQuantityKind
Focus nodes of this shape (qudt:AbstractQuantityKind) can have the following properties:
| PROPERTY | DESCRIPTION | MIN | MAX | VALUE TYPE | OTHER CONSTRAINTS |
|---|---|---|---|---|---|
| qudt:altSymbol | An alternative symbol | 0 | * | ||
| qudt: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 | * | qudt:LatexString | |
| qudt:organizedUnder | <p>Relates a quantity kind to a broader quantity kind for the purpose of <em>organization and unit applicability only</em> — it does <strong>not</strong> assert commensurability. A sub-property of <code>skos:broader</code> (so it contributes to the concept hierarchy), but unlike <code>qudt:specializationOf</code> it makes no commensurability claim: <code>qudt:organizedUnder</code> groups quantity kinds that share a dimension but are <em>not</em> interchangeable — principally the dimensionless quantity kinds, which are all organised under <code>quantitykind:Dimensionless</code> / <code>quantitykind:DimensionlessRatio</code> without being commensurable with one another. <code>qudt:organizedUnder</code> still contributes to the concept hierarchy (via <code>skos:broader</code>), and the build still validates that it only links quantity kinds of the same dimension, but the applicable-unit computation traverses only <code>qudt:specializationOf</code> — an organizational grouping confers no units on its members. The commensurability test likewise traverses <code>qudt:specializationOf</code> and <code>qudt:exactMatch</code> (never <code>qudt:organizedUnder</code>).</p> | 0 | * | qudt:QuantityKind | |
| qudt:specializationOf | <p>Relates a quantity kind to a broader quantity kind of which it is a <em>specialization</em>, asserting <strong>commensurability</strong>: the two share a dimension, their values are comparable and addable, and their units are inter-convertible. A sub-property of <code>skos:broader</code>. Commensurability families are the connected components under <code>(qudt:specializationOf | qudt:exactMatch)</code>. Contrast <code>qudt:organizedUnder</code>, which groups quantity kinds without asserting commensurability.</p> | 0 | * | qudt:QuantityKind | |
| qudt: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 | 1 | ||
skos:broader |
0 | * | qudt:QuantityKind |
@prefix qudt: <http://qudt.org/schema/qudt/> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix sh: <http://www.w3.org/ns/shacl#> .
qudt:AbstractQuantityKind a rdfs:Class,
sh:NodeShape ;
rdfs:label "Quantity Kind (abstract)" ;
rdfs:isDefinedBy <http://qudt.org/3.5.2/schema/shacl/qudt> ;
rdfs:subClassOf qudt:Concept ;
sh:property qudt:AbstractQuantityKind-altSymbol,
qudt:AbstractQuantityKind-broader,
qudt:AbstractQuantityKind-latexSymbol,
qudt:AbstractQuantityKind-organizedUnder,
qudt:AbstractQuantityKind-specializationOf,
qudt:AbstractQuantityKind-symbol .