It is possible to organize microthesauri entities in two hierarchies of types (concept types and relation types). It is also possible to link each concept to an open-ended list of concept types, each of which corresponds to some area of the thesaurus.
Concept Type Model: Details
- Preferred Label
- Sub-class of:
Extended Concept Types
Note: this information is a brief of https://www.w3.org/wiki/SkosCoreGuideToc/SectionExtending/ConceptTypes.
This section describes how to extend the skos:Concept class to create more specific classes of concept.
You can use the new class exactly as you would normally use skos:Concept.
Representing Fundamental Facets
An important use case for this type of extension is in the representation of fundamental facets within a concept scheme.
In a concept scheme ordered according to fundamental facets, each fundamental facet contains a homogeneous class of concepts, the members of which share characteristics that distinguish them from members of other classes.
So, for example, the Art & Architecture Thesaurus [ref] declares the following fundamental facets:
STYLES AND PERIODS
To represent fundamental facets in RDF, declare an extension of skos:Concept