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"Thomas G. Habing" wrote: > > Hi Jeffery, > > Thanks very much for the feedback. > > We have attempted to base our XML on the draft "Expressing Qualified Dublin > Core in RDF" > (http://www.mathematik.uni-osnabrueck.de/projects/dcqual/qual21.3.1/) In > section 2.3.8 the recommendation for modeling the DCQ URI encoding scheme is > to use the rdf:resource attribute. This makes sense because rdf:resources > are by definition URIs, and we need to preserve the fact that > mailto:[log in to unmask] is a URI, as opposed to some other type of > identifier, which could occur for different records. You could encode the > agentidentifier like the following, while still preserving all of the > semantics: > > <dca:agentidentifier> > <dcq:URI> > <rdf:value>mailto:[log in to unmask]</rdf:value> > </dcq:URI> > </dca:agentidentifier> There is (currently) no class dcq:URI defined in the proposal. For the reasons you mentioned above, one should always use rdf:resource. Best regards, Stefan