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SKOS Vocabulary

An RDF vocabulary for describing the basic structure and content of concept schemes such as thesauri, classification schemes, subject heading lists, taxonomies, 'folksonomies', other types of controlled vocabulary, and also concept schemes embedded in glossaries and terminologies.
Contributor
Participants in W3C's Semantic Web Deployment Working Group.
Dave Beckett
Nikki Rogers
Creator
Alistair Miles
Sean Bechhofer
Description
An RDF vocabulary for describing the basic structure and content of concept schemes such as thesauri, classification schemes, subject heading lists, taxonomies, 'folksonomies', other types of controlled vocabulary, and also concept schemes embedded in glossaries and terminologies.
Title
SKOS Vocabulary
type
seeAlso

Classes

URI Label Comment
skos:Collection
skos:Concept, skos:ConceptScheme
Collection A meaningful collection of concepts.
skos:Concept Concept An idea or notion; a unit of thought.
skos:ConceptScheme
skos:Concept
Concept Scheme A set of concepts, optionally including statements about semantic relationships between those concepts.
skos:OrderedCollection
skos:Collection
Ordered Collection An ordered collection of concepts, where both the grouping and the ordering are meaningful.

Properties

URI Label Comment
skos:altLabel
rdfs:label
alternative label An alternative lexical label for a resource.
skos:changeNote
skos:note
change note A note about a modification to a concept.
skos:definition
skos:note
definition A statement or formal explanation of the meaning of a concept.
skos:editorialNote
skos:note
editorial note A note for an editor, translator or maintainer of the vocabulary.
skos:example
skos:note
example An example of the use of a concept.
skos:broader
skos:broaderTransitive
has broader Relates a concept to a concept that is more general in meaning.
skos:broadMatch
skos:broader, skos:mappingRelation
has broader match skos:broadMatch is used to state a hierarchical mapping link between two conceptual resources in different concept schemes.
skos:broaderTransitive
skos:semanticRelation
has broader transitive skos:broaderTransitive is a transitive superproperty of skos:broader.
skos:closeMatch
skos:mappingRelation
has close match skos:closeMatch is used to link two concepts that are sufficiently similar that they can be used interchangeably in some information retrieval applications. In order to avoid the possibility of "compound errors" when combining mappings across more than two concept schemes, skos:closeMatch is not declared to be a transitive property.
skos:exactMatch
skos:closeMatch
has exact match skos:exactMatch is used to link two concepts, indicating a high degree of confidence that the concepts can be used interchangeably across a wide range of information retrieval applications. skos:exactMatch is a transitive property, and is a sub-property of skos:closeMatch.
skos:member
skos:Collection ↦ (skos:Conceptskos:Collection)
has member Relates a collection to one of its members.
skos:memberList
skos:OrderedCollectionrdf:List
has member list Relates an ordered collection to the RDF list containing its members.
skos:narrower
skos:narrowerTransitive
has narrower Relates a concept to a concept that is more specific in meaning.
skos:narrowMatch
skos:narrower, skos:mappingRelation
has narrower match skos:narrowMatch is used to state a hierarchical mapping link between two conceptual resources in different concept schemes.
skos:narrowerTransitive
skos:semanticRelation
has narrower transitive skos:narrowerTransitive is a transitive superproperty of skos:narrower.
skos:related
skos:semanticRelation
has related Relates a concept to a concept with which there is an associative semantic relationship.
skos:relatedMatch
skos:related, skos:mappingRelation
has related match skos:relatedMatch is used to state an associative mapping link between two conceptual resources in different concept schemes.
skos:hasTopConcept
skos:ConceptSchemeskos:Concept
has top concept Relates, by convention, a concept scheme to a concept which is topmost in the broader/narrower concept hierarchies for that scheme, providing an entry point to these hierarchies.
skos:hiddenLabel
rdfs:label
hidden label A lexical label for a resource that should be hidden when generating visual displays of the resource, but should still be accessible to free text search operations.
skos:historyNote
skos:note
history note A note about the past state/use/meaning of a concept.
skos:mappingRelation
skos:semanticRelation
is in mapping relation with Relates two concepts coming, by convention, from different schemes, and that have comparable meanings
skos:inScheme
◌ ↦ skos:ConceptScheme
is in scheme Relates a resource (for example a concept) to a concept scheme in which it is included.
skos:semanticRelation
skos:Conceptskos:Concept
is in semantic relation with Links a concept to a concept related by meaning.
skos:topConceptOf
skos:Conceptskos:ConceptScheme
skos:inScheme
is top concept in scheme Relates a concept to the concept scheme that it is a top level concept of.
skos:notation notation A notation, also known as classification code, is a string of characters such as "T58.5" or "303.4833" used to uniquely identify a concept within the scope of a given concept scheme.
skos:note note A general note, for any purpose.
skos:prefLabel
rdfs:label
preferred label The preferred lexical label for a resource, in a given language.
skos:scopeNote
skos:note
scope note A note that helps to clarify the meaning and/or the use of a concept.