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- From: David Megginson <email@example.com>
- To: "'XML Dev'" <firstname.lastname@example.org>
- Date: Thu, 17 Jun 1999 11:17:39 -0400 (EDT)
Rick Jelliffe writes:
> A schema that would be useful for document construction should
> include human-readable comments, the ability of one attribute to
> enable another, specifying the end types of reference, etc.
> Newbies ask predictable questions about structures; the draft has
> not addressed those questions.
Rick makes a very good point -- the schema requirements for authoring
and validation/processing are very different. Additional complexity
comes from the fact that there is also an n:n relationship also
between authoring and processing schemas: a document created using any
given authoring schema may match n validation schemas, and vice-versa.
The main point, I think, is that it would be a mistake to try to force
any kind of 1:1 relationship onto XML documents and their
schemas/stylesheets, etc. by using the Namespace URI to locate a
single, canonical schema.
All the best,
David Megginson email@example.com
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