• From: Jeff Lowery <jlowery@s...>
• To: "'Hayes, Brian'" <Brian.Hayes@C...>, xml-dev@l...
• Date: Tue, 04 Sep 2001 14:09:22 -0700

> Perhaps one thing to clarify is to ask what namespaces are primarily
> intended to do.  If they are meant to uniquely identify 
> something, then use
> URNs.  If they are primarily meant to locate something then, 
> consider URLs.
> If they are primarily meant to do both, then, IMHO, use URNs.

Perhaps unfortunately, namespace are not guaranteed to resolve to anything;
they're just a label. Even if you construct them so that they do resolve,
problems can occur. For example, XML Schema processors don't have to use the
URL or even a schemaLocation attribute to resolve the location of a schema
document. 

Best to consider namespaces as labels, nothing more.

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