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On Fri, Oct 22, 2004 at 09:25:27PM +0100, Michael Kay wrote:
> I'm not even comfortable that the hierarchic relationships should be
> special. Why can't we have multiple hierarchic views of the same network?
This sort of question is one of the reasons I go to the Extreme Markup
conferences -- there are people there who have been spending a lot of
time thinking about this sort of question.
> Why do all my queries have to change depending on whether my footnotes
> are inline, out-of-line referenced by IDREFs, or in external documents
> referenced by URI? What happened to the old doctrine of data
> independence?
To some extent this can be hidden behind functions -- I actually think
XQuery has so far failed to address its requirement of supporting
pointers/links, but few othew XML (or even Web) query systems do
better. There isn't consensus on how to represent relationships.
So the difficult part is that you can't write the functions to be
general. One could use RDF schema annotations, I suppose.
I'm rambling, but I think really I'm agreeing with you, and trying to
think about ways to go further.
Liam
--
Liam Quin, W3C XML Activity Lead, http://www.w3.org/People/Quin/
http://www.holoweb.net/~liam/
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