Fwd: Element names in prov-xml

Begin forwarded message:

> Resent-From: <p.t.groth@vu.nl>
> From: Egon Willighagen <egon.willighagen@gmail.com>
> Date: December 12, 2012, 22:56:42 GMT+01:00
> To: "Groth, P.T." <p.t.groth@vu.nl>
> Cc: Provenance Working Group <public-prov-wg@w3.org>
> Subject: Re: Element names in prov-xml
> 
> On Wed, Dec 12, 2012 at 10:48 PM, Paul Groth <p.t.groth@vu.nl> wrote:
>> I've been having a chat with Egon Willighagen in twitter about the element name case in prov-xml. You can see excerpts below. The key question is why element names are lower case e.g <prov:entity ...> and not upper case. This does not correspond to the convention in rdf/xml plus it looks a bit weird when sitting next to the turtle.
> 
> The relevant section in the 2004 RDF/XML spec is 2.13 which describes
> the behavior:
> 
> "It is common for RDF graphs to have rdf:type predicates from subject
> nodes. These are conventionally called typed nodes in the graph, or
> typed node elements in the RDF/XML. RDF/XML allows this triple to be
> expressed more concisely. by replacing the rdf:Description node
> element name with the namespaced-element corresponding to the RDF URI
> reference of the value of the type relationship."
> 
> You can test it with this XML snippet
> 
> <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"
>  xmlns:dc="http://purl.org/dc/elements/1.1/"
>  xmlns:prov="http://www.w3.org/ns/prov#">
>  <prov:entity rdf:about="ex:article">
> <dc:title>Crime rises in cities</dc:title>
>  </prov:entity>
> </rdf:RDF>
> 
> here -> http://www.rdfabout.com/demo/validator/
> 
> If you 'validate' it, it will also create other formats, showing that
> the above RDF/XML has a rdf:type prov:entity ... that confirms that
> convention.
> 
> Section 2.13 is not
> 
>> Do we have a good explanation for this?
> 
> Also note that my RDF/XML snippet uses rdf:about rather than prov:id
> ... I have to check whether rdf:ID or rdf:about is more appropriate,
> but that would be closer to RDF/XML too than prov:id ... but that's a
> separate thing you may want to look at.
> 
> Egon
> 
> 
> --
> Dr E.L. Willighagen
> Postdoctoral Researcher
> Department of Bioinformatics - BiGCaT
> Maastricht University (http://www.bigcat.unimaas.nl/)
> Homepage: http://egonw.github.com/
> LinkedIn: http://se.linkedin.com/in/egonw
> Blog: http://chem-bla-ics.blogspot.com/
> PubList: http://www.citeulike.org/user/egonw/tag/papers