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   Re: Namespace URI address resources

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  • From: David Megginson <david@megginson.com>
  • To: "'XML Dev'" <xml-dev@ic.ac.uk>
  • 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                 david@megginson.com

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