Garret Wilson wrote: > > Bruce, > > (I hope you don't mind me moving this to the semantic-web list.) > > Bruce D'Arcus wrote: >> I've not worked with them, but my understanding was if you define the >> domain of some property as some class, and the rdf:type is not >> present, it gets added. > It is worth stating things precisely... *If* the RDF environment being used implements RDFS Entailement[1], in other words if it extends the knowledge base with additional triples that are described by [2] then yes, Bruce is right, the extra rdf:type triple is added to the the knowledge base. However, this is not necessarily the case by default. If you just upload your triples into, say, Jena, RDFLib, Redland, or other such animal, then this will not happen. You may have to make an explicit request or use some other tools to have it done... I hope this helps Ivan [1] http://www.w3.org/TR/rdf-mt/#rdfs_entailment [2] http://www.w3.org/TR/rdf-mt/#RDFSRules > -- Ivan Herman, W3C Semantic Web Activity Lead Home: http://www.w3.org/People/Ivan/ PGP Key: http://www.ivan-herman.net/pgpkey.html FOAF: http://www.ivan-herman.net/foaf.rdf
Received on Wednesday, 25 July 2007 08:41:14 UTC