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Re: Significant W3C Confusion over Namespace Meaning and Policy

From: Henry S. Thompson <ht@inf.ed.ac.uk>
Date: Mon, 21 Feb 2005 15:35:58 +0000
To: Robin Berjon <robin.berjon@expway.fr>
Cc: Dare Obasanjo <dareo@microsoft.com>, www-tag@w3.org
Message-ID: <f5b8y5isz6p.fsf@erasmus.inf.ed.ac.uk>

Robin Berjon <robin.berjon@expway.fr> writes:

> Dare Obasanjo wrote:
>> [Dare Obasanjo] Yes. Schema locations are hints not directives. A XML
>> Schema validator can ignore locations and use schemas it already knows
>> about.
> Oh right sorry, I'd forgotten that XML Schema was thoroughly broken in
> its specifying of xs:import. Still, it seems like a strange reason to
> expect the xml:* namespace to be fixed. The whole point of reserving
> names in the spec is so that future specs can add new ones!

Um, I have to acknowledge what Dare said earlier in defense of
xs:import -- applications _must_ be allowed to protect themselves
against bogus or simply inappropriate/stale/premature schemas.

The fundamental principle behind the approach taken in W3C XML Schema
to schema location strategies is that you cannot provide for all
legitimate needs by giving _either_ users _or_ applications absolute

 Henry S. Thompson, HCRC Language Technology Group, University of Edinburgh
                     Half-time member of W3C Team
    2 Buccleuch Place, Edinburgh EH8 9LW, SCOTLAND -- (44) 131 650-4440
            Fax: (44) 131 650-4587, e-mail: ht@inf.ed.ac.uk
                   URL: http://www.ltg.ed.ac.uk/~ht/
[mail really from me _always_ has this .sig -- mail without it is forged spam]
Received on Monday, 21 February 2005 15:36:03 UTC

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