Difference between revisions of "Template:Concept scheme relation/doc"
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=== TODO === | === TODO === | ||
| − | * | + | * decide for a self-explanatory pagename property for #set_internal’s first argument (see [[Template talk:Concept scheme relation]]) |
| − | + | * revise layout + semantic properties | |
=== See also === | === See also === | ||
Latest revision as of 10:33, 26 October 2012
Contents
Background
Originally, the inScheme relation was part of the general relations (see template: Concept relation). It was separated, because we desire to express constraints (range, domain, cardinality) about concepts. The complication here is that consensus exists to define "base-schemes" with as few constraints as possible, which are then re-used in more constraining schemes. This means that constraints for a concept are not universal properties of the concept itself, but rather of their re-use.
Usage
On Concept pages (using Form:Concept) the following can be repeated any number of times (bold=mandatory parameter):
{{Concept scheme relation
| scheme = <!-- page name of a concept scheme -->
| property domain =<!-- a domain constraint defined within that scheme -->
| property range =<!-- a range constraint defined within that scheme -->
| property cardinality =<!-- one value of: "0..1", "0..n", "1..1", "1..n" -->
}}
Parameter in detail:
scheme= age name of a concept scheme
property domain = if present concept is a property, a domain constraint defined within that scheme. A domain defines the class of subject resources, to which a property may be applied. The constraints of the original scheme are most relevant, but other schemes may define other constraints. This maps to rdfs:domain if the skos concept is applied as an rdfs/owl ontology.
property range = if present concept is a property, a range constraint defined within that scheme. A range declares the class or datatype of the values or objects that are assigned to a property (the right side in the triple). The constraints of the original scheme are most relevant, but other schemes may define other constraints. This maps to rdfs:range[1] if the skos concept is applied as an rdfs/owl ontology.
property cardinality = if present concept is a property, a cardinality constraint defined within that scheme. Values are:
- 0..1 (optional single occurrence)
- 0..n (optional multiple occurrence)
- 1..1 (mandatory single occurrence)
- 1..n (mandatory multiple occurrence).
The constraints of the original scheme are most relevant, but other schemes may define other constraints. For example "1..1" maps to owl:minCardinality "1" owl:maxCardinality "1" if the skos concept is applied as an rdfs/owl ontology.
- ↑ is rdfs:range correct? --Andreas Plank 17:32, 25 October 2012 (CEST)
TODO
- decide for a self-explanatory pagename property for #set_internal’s first argument (see Template talk:Concept scheme relation)
- revise layout + semantic properties
