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Re: URIEquivalence-15 and IRIs

From: <noah_mendelsohn@us.ibm.com>
Date: Tue, 4 Jun 2002 22:33:08 -0400
To: Misha.Wolf@reuters.com
Cc: Tim Bray <tbray@textuality.com>, w3c-i18n-ig@w3.org, www-tag@w3.org
Message-ID: <OFBBEBD691.6358680A-ON85256BCF.000F3C0D@lotus.com>

Misha Wolf writes:

>> Reasons to be careful include that the decisions taken on these 
matters:
>> -  will be with us for a long time :-)
>> -  will affect URI matching in XML Namespaces
>> -  will affect URI matching in RDF

That bit about namespace matching makes me nervous.  Last time
namespace matching came up I think we generated 3000+ emails,
and only barely eked out consensus.

Seriously: I think we should approach changes to namespace
matching with great trepidation, if at all.  As an implementor, I
can confirm that namespaces are already a very serious impediment
to truly high performance XML processing.  Any further changes
(or even clarifications) to matching rules should be evaluated
with great care.  The performance considerations for namespace
matching (and perhaps for RDF as well) are not necessarily the
same as when URIs are used for resource retrievals. 

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Noah Mendelsohn                              Voice: 1-617-693-4036
IBM Corporation                                Fax: 1-617-693-8676
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Received on Tuesday, 4 June 2002 22:52:59 UTC

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