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May I suggest that this discussion could better take place on
DC-ARCHITECTURE?

Makx Dekkers.


> -----Original Message-----
> From: General DCMI discussion list
> [mailto:[log in to unmask]] On Behalf Of Pete Johnston
> Sent: Wednesday, August 05, 2009 6:37 PM
> To: [log in to unmask]
> Subject: Re: xsi:type to specify encoding
>
> Hi Karen,
>
> > Pete, thanks as always. Could you show how one would use the
> > VES defined in DCMI terms? That's the main question here. I
> > want to use dc/terms/subject and LCC or DDC as the vocabulary
> > of the subject.
>
> For LCC as a vocabulary encoding scheme, I think the corresponding
> RDF/XML example would be:
>
> <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
>  xmlns:dcterms="http://purl.org/dc/terms/"
>  xmlns:dcam="http://purl.org/dc/dcam/">
>   <rdf:Description rdf:about="http://example.org/book/123">
>     <dcterms:subject>
>       <rdf:Description>
>         <dcam:memberOf rdf:resource="http://purl.org/dc/terms/LCC"/>
>         <rdf:value>HV3709</rdf:value>
>       </rdf:Description>
>     </dcterms:subject>
>   </rdf:Description>
> </rdf:RDF>
>
> RDF/XML allows some syntactic variations so I can think of another
> slightly different way of "saying the same thing", but I
> think the above
> should do what you want.
>
> And if there was a URI for your LCC term, say
> http://example.org/LCC/HV3709 , then that could be included
>
> <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
>  xmlns:dcterms="http://purl.org/dc/terms/"
>  xmlns:dcam="http://purl.org/dc/dcam/">
>   <rdf:Description rdf:about="http://example.org/book/123">
>     <dcterms:subject>
>       <rdf:Description rdf:about="http://example.org/LCC/HV3709">
>         <dcam:memberOf rdf:resource="http://purl.org/dc/terms/LCC"/>
>         <rdf:value>HV3709</rdf:value>
>       </rdf:Description>
>     </dcterms:subject>
>   </rdf:Description>
> </rdf:RDF>
>
> > The documentation says:
> >
> > "This term is intended to be used with non-literal values as
> > defined in the DCMI Abstract Model
> > (http://dublincore.org/documents/abstract-model/). As of
> > December 2007, the DCMI Usage Board is seeking a way to
> > express this intention with a formal range declaration."
> >
> > Does this mean that we don't currently have a way to do what I want?
>
> No... that note is a reference to a separate issue, the range of
> dcterms:subject, which is currently unspecified and so is the class
> rdfs:Resource, i.e. the class of anything at all, including literals;
> and there was some discussion of changing it to say it was a
> class which
> excluded literals.
>
> Pete