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Can someone please point me toward the most up-to-date XML Schema definition for RDF? |
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I'm not aware of any official XML Schema definition for RDF/XML, but there is a (non-normative) RELAX NG spec. See appendix A of the RDF/XML syntax specification. If you need XML Schema, you could use a tool like Trang to convert it. |
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Jeen is right, there is no official XML Schema definition for RDF/XML. I am not expert in XML Schemas, but I am not even sure it is doable (or the result would be incredibly complicated). The question is: what do you need it for? I am not the one who needed it, someone requested it from me and I was doing my best to provide them an accurate and complete answer. 2
(commenting on Ivan's answer) A possible use case for this would be exporting directly RDF/XML as a metadata format through OAI-PMH (see here). FWIW, I also have the feeling that an XML Schema describing the structure of every valid RDF/XML file would be very hard to build (e.g. it would need to consider the fact that node elements can be not only RDF constructs but also any QName corresponding to an RDFS class or property). |
