skosnarrower

skos:narrower is a property in the SKOS (Simple Knowledge Organization System) vocabulary used to express that one concept is more specific than another within a concept scheme. It is commonly used to encode hierarchical relationships in thesauri, taxonomies, and other knowledge organization systems.

The property relates a broader concept to a narrower one; the subject is the broader concept and the object is the narrower concept. skos:narrower is the inverse of skos:broader, so if A skos:narrower B, then B skos:broader A. This inverse relationship helps support bidirectional navigation of concept hierarchies in applications and data stores.

Domain and range for skos:narrower are both skos:Concept, making it applicable to any SKOS concept. By itself, skos:narrower is not transitive; it does not imply that a chained sequence of narrower relations holds. For transitive reasoning, SKOS provides skos:narrowerTransitive, which expresses the transitive closure of narrower relations.

Example: ex:Vehicle skos:narrower ex:Car, and equivalently ex:Car skos:broader ex:Vehicle. This captures the idea that a car is a more specific concept within the broader vehicle concept, enabling structured navigation and hierarchical query capabilities within a concept scheme.

In practice, skos:narrower supports organizing concepts in taxonomies and thesauri, aiding hierarchical browsing, filtering, and semantic search. It is typically used alongside skos:broader, skos:related, and other SKOS properties to model a coherent knowledge organization structure.