[xtm-wg] Re: XTM(P) Questions

["Martin Lacher" <lacher@db.stanford.edu>]

> lacher@in.tum.de wrote:
> >
> > Hi all,
> >
> > I am currently working on a representation of Topic Maps in RDF, such
> > that RDF tools can be used for Topic Maps as well.
> > After I went through the XTM and XTMP Specs I had a couple of
> > questions:
> [...]
>
> I'm afraid that your RDF tools will fail. One of the things that hasn't
> been loudly stated, nor sufficiently promoted, is the XTM Processing
> Model.

Hi Murray,

Thanks for your info !
By XTMP above I meant the Processing Model. So the questions I had came up
after I read the processing model.
By RDF tools I mean query and inferencing tools - not deserialization. That
(deserialization) of course, cannot be done without following the rules of
the XTM processing model.

> While RDF and XTM documents are XML documents, topic maps cannot
> be processed directly from XTM documents using a DOM-like model. There are
> a number of fundamental processes that must occur before the "API" of
> a topic map document can be exposed.

Thanks for your hints, I am well aware of this. My plan is to implement the
processing model and instead of generating a generic internal graph
representation I am going to generate an RDF graph.

> The XTM Processing Model is an absolutely vital part of the topic map
> paradigm, not something to sweep under the carpet. The fact that your
> questions exist should point out that these types of misunderstandings
> should be addressed in a publicly available specification.

I totally agree with you - my questions, however, were actually ON the XTM
Spec AND the processing model.

> RDF tools
> cannot directly process XTM documents, unless their developers create
> a "topic map layer" above the RDF layer that conforms to the processing
> model required to turn XTM documents into topic map "graphs."

That is exactly what I am planning to do and what my questions were related
to. Do my questions make any sense now ?

Thanks for your help,

Martin Lacher


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