The Ontology Web Language (OWL) 2.0 is a semantic web standard based on Description Logics (DL). More information on the W3C OWL 2.0 home page as well as at the OWL 2 Wikipedia topic.

The HGDBOWL module offers a complete, persistent, fully transactional implementation of the de facto standard OWLAPI for working with OWL ontologies. Each ontology is naturally represented as a sub-graph within a HyperGraphDB instance, thanks to the native nested graph support.

Documentation at: OWL @ hypergraphdb.org

APIs at: OWL Javadocs @ hypergraphdb.org