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Re: IETF input to XML Schema 1.1
XSD 1.1 is definitely looking at extensibility. I think it comes under bug
fixing! (It's fairly easy to argue that XSD 1.0 is broken in this respect.)
You can get an idea of the scope of what is being considered by looking at:
http://www.w3.org/TR/xmlschema-guide2versioning/
Unless you're expecting something radically different for XSD 2.0 (e.g. tear
up XSD 1.x and start again) I imagine that they wouldn't expect to revisit
extensibility in an XSD 2.0 exercise. (As far as I can tell a schema 1.2
exercise is only considered a possible.)
So I think now is the time to have input on extensibility if there are those
that have such input.
Thanks,
Pete.
--
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Pete Cordell
Tech-Know-Ware Ltd
for XML to C++ data binding visit
http://www.tech-know-ware.com/lmx/
http://www.codalogic.com/lmx/
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----- Original Message -----
From: "Larry Masinter" <LMM@xxxxxxx>
To: "'Pete Cordell'" <petexmldev@xxxxxxxxxxxxxxxxxx>; <ietf-xml-use@xxxxxxx>
Sent: Tuesday, April 17, 2007 5:29 AM
Subject: RE: IETF input to XML Schema 1.1
I'm sure the 'IETF view' contains many points of view. However,
one of the more difficult sections of RFC 3470 was section 4.7
on "Validity and Extensibility", which at least hints on some
of the requirements around extensibility, performance, ability
to express semantic constraints, etc.
But I think dealing with those issues calls doesn't seem to be
consistent with the charter http://www.w3.org/XML/Schema:
"The XML Schema WG is currently working towards the completion
of XML Schema 1.1, which is intended to be mostly compatible
with XML Schema 1.0 and to have approximately the same scope,
but also to fix bugs and make whatever improvements we can,
consistent with the constraints on scope and compatibility."
since it's likely to be more like "XML Schema 2.0"