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> From: Patrick Durusau [mailto:email@example.com]
> Underlying XML is a data model. That data model is set forth at:
Actually, if you look at the referring page http://www.w3.org/XML/notes.html
it seems that that Datamodel is part of an abandoned project to
make a strawman simplified XML. Hence the "default attribute"
section at the end has stubs on using an <?xml?> PI to hold
default values for attributes. It has the note in red
"It dates from 1997 and is not currently maintained. "
The referring page itself is in the Research Notes section of
the http://www.w3.org/XML page. It is research (exploring and
hacking ideas) and does not present itself as being normative
in any way. Contrast this to the Infoset recommendation.
I guess if anyone has links to that page treating the data model
as being official, they need to (be asked to) alter their links.
(Incendentally, this is one reason why Ted Nelson does not
like the page approach to hypertext: his hypertext vision was
more a system of embedding quotations in which the original
document was still accessible: that way it was easy to figure
out the context of some text and see if it had been misconstrued.
Pages may rely on introductory material on previous pages,
which will be missed during normal reading of a page. )