Using the W3C OWL ontology standard lets you get more out of all kinds of data. Find out how this standard and some free software lets you query two databases as if they were one. by Bob DuCharme
Draft 2.0 of The Open Group's SOA ontology. This draft is being exposed for comment outside The Open Group prior to formal Open Group company review. Interested parties are invited to sent comments, and those comments will be addressed in the version submitted to formal review by The Open Group. A PDF file contains the textual description of the ontology, and an OWL file contains the ontology itself.
Horrocks et al discuss language architecture for the Semantic Web, and in particular different proposals for extending this architecture with a rules component. They argue that an architecture that maximises compatibility with existing languages, in particular RDF and OWL, will benefit the development of the Semantic Web, and still allow for forms of closed world assumption and negation as failure.
Tim Berners-Lee keynote at WWW2005 on 11 May 2005.
W3C Recommendation 10 February 2004. The OWL Web Ontology Language is designed for use by applications that need to process the content of information instead of just presenting information to humans. OWL facilitates greater machine interpretability of Web content than that supported by XML, RDF, and RDF Schema (RDF-S) by providing additional vocabulary along with a formal semantics.