[OAI-implementers] rdf

Young,Jeff jyoung@oclc.org
Thu, 21 Jun 2001 16:59:49 -0400

I have a question about using multiple namespaces within an OAI <metadata>
element. The discussion below implies that this can be done.

> -----Original Message-----
> From: lagoze@cs.cornell.edu [mailto:lagoze@cs.cornell.edu]
> Sent: Wednesday, May 02, 2001 7:15 AM
> To: eric_morgan@ncsu.edu; oai-implementers@oaisrv.nsdl.cornell.edu
> Subject: RE: [OAI-implementers] rdf
> Now onto the issue of "passing RDF metadata in OAI responses", in
> particular.  I need to understand the motivation for this as 
> I evaluate,
> with Herbert and other people in the OAI community, our 
> choices in OAI.
> Is it:
> 1. A desire to mix multiple namespaces in a metadata record (e.g., mix
> dc tags with GEM tags).  In the DC community this is currently called
> devising an "application profile".
> Adressing each of these:
> 1. It is not necessary to use RDF to mix elements from multiple
> namespaces.  One can write an XML schema to allow this.  

My understanding of the xsi:schemaLocation is that it associates a
particular xsd with a particular namespace. If I have an xsd set up for
multiple namespaces, though, how do I pick which namespace the xsd is to be
associated with in the xsi:schemaLocation? Arbitrarily picking one just
doesn't seem appropriate.