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DefiningImageAccess/Standard/OWL
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Web Ontology Language

• http://www.w3.org/2004/OWL/

See also:

• DefiningImageAccess/Standard/RDF - Resourcse Description Framework (RDF and RDFS)
• DefiningImageAccess/Standard/SPARQL - RDF query language

Notes

Class semantics: intensional vs extensional

OWL DL and RDFS/OWL Full treat classes differently, sometimes described as intesional vs extensional semantics. There's an explanation in this message from Pat Hayes: http://lists.w3.org/Archives/Public/public-owl-dev/2007AprJun/0172.html.