> It seems that mixing up namespaces and DTDs/Schemas is
> incorrect. DTDs and Schemas would *use* namespaces, but a namespace
> itself should be just a namespace, shouldn't it? Making a
> namespace and a DTD/Schema one and the same means that the tags in
> that namespace could only be used in a document that matched that
> DTD/Schema, which obviously would not be optimal for very open
> ended sets of tags.
Absolutely correct -- the XML WG came to the same conclusion.
Although the schema mechanism is not yet defined, it will certainly be
possible to have a many-to-many relationship among schemas and
namespaces. I can write my own structural schema that happens to use
names from the TEI and Docbook namespaces, but arranged according to
my own requirements (i.e. this is a TEI paragraph, but I'm allowing it
only here).
All the best,
David
--
David Megginson david@megginson.com
http://www.megginson.com/