A new property 'skos:hasTopConcept' has been added to the SKOS Core vocabulary. This property replaces the class skos:TopConcept, which is now deprecated.
This new property is added to support the modelling of concepts that are members of more than one scheme, and where a concept may be a top concept in one scheme and not in another.
So now, to indicate that some concept is a top concept in a specific scheme, do e.g. the following:
@prefix skos: <http://www.w3.org/2004/02/skos/core#>.
@prefix ex: <http://example.org/>.
ex:myConceptScheme
skos:hasTopConcept ex:conceptA;
skos:hasTopConcept ex:conceptB;
skos:hasTopConcept ex:conceptC.
The RDF description of the new property skos:hasTopConcept is as follows:
<rdf:Property rdf:ID="hasTopConcept"> <rdfs:label>has top concept</rdfs:label> <rdfs:domain rdf:resource="#ConceptScheme"/> <rdfs:range rdf:resource="#Concept"/> <rdfs:comment>Use this property to indicate that a concept is a top concept in a specific concept scheme.</rdfs:comment> <rdfs:isDefinedBy rdf:resource="http://www.w3.org/2004/02/skos/core"/> <vs:term_status>testing</vs:term_status> <owl:versionInfo>This property replaces the deprecated skos:TopConcept class.</owl:versionInfo> <dct:replaces rdf:resource="#TopConcept"/> <dct:created>2004-08-19</dct:created> </rdf:Property>
The RDF description of the old class skos:TopConcept is now as follows:
<owl:DeprecatedClass rdf:ID="TopConcept">
<rdfs:label>Top Concept</rdfs:label>
<rdfs:comment>A concept that sits at the top of the concept hierarchy.</rdfs:comment>
<rdfs:isDefinedBy rdf:resource="http://www.w3.org/2004/02/skos/core"/>
<vs:term_status>unstable</vs:term_status>
<owl:versionInfo>This class is now deprecated. To indicate that a concept is a top concept in a scheme, now use the skos:hasTopConcept property.</owl:versionInfo>
<dct:isReplacedBy rdf:resource="#hasTopConcept"/>
<dct:modified>2004-08-19</dct:modified>
</owl:DeprecatedClass>