The AKT Reference Ontology has been developed by the AKT partners to represent the knowledge used in the CS AKTive Portal testbed, and consists of several sub-ontologies. These are available in four formats: OWL, OCML, Ontolingua and DAML+OIL. Due to the relative expressiveness of OCML, Ontolingua, OWL and DAML+OIL, there are aspects of the OCML/Ontolingua versions that are not captured in the OWL or DAML+OIL versions.

Support Ontology [OWL] [DAML+OIL] [OCML, source] [[Ontolingua, source]

Top level ontology, providing basic definitions used by the portal ontology, including a simple representation of temporal objects.

Portal Ontology [OWL] [DAML+OIL] [OCML, source] [[Ontolingua, source]

The main ontology, describing people, projects, publications, geographical data, etc.

Extensions Ontology [OWL] [DAML+OIL]

An ontology of definitions which are in use, but which have not been reviewed by the AKT partners and agreed for inclusion in the portal ontology.

RDF Compatibility Ontology [OWL]

An ontology of definitions intended to improve compatibility between the AKT Reference Ontology and RDF(S).

INCA Ontology [OWL]

An ontology which joins the <I-N-C-A> model with the AKT Reference Ontology.

The AKT D3E website (AKT members only) and the mailing list ontology@aktors.org provide discussion forums for the ontology.

The data used for the CS AKTive Portal testbed is available in RDF form from the Hyphen website and can be browsed on the AKT Triplestore website. You can also access the AKT Reference Ontology populated with people and projects from KMi and Southampton in OCML and Ontolingua.

We use the knowledge base stored in the AKT Triplestore to generate content for this website, most notably the AKT technology pages, and also to drive the CS AKTiveSpace application.