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Re: TB16 Re: Comments on arch doc draft

From: Paul Prescod <paul@prescod.net>
Date: Mon, 01 Jul 2002 14:33:19 -0700
Message-ID: <3D20CA9F.BED247F1@prescod.net>
To: Dare Obasanjo <dareo@microsoft.com>, www-tag@w3.org

Dare Obasanjo wrote:
> Since URIs comprise the set of URNs as well as URLs I'm not sure exactly
> how one can state that namespace names should be dereferencable if there
> is no uniform mechanism for dereferencing URNs nor is it clear whether
> they were originally designed to be dereferenced.

"Should be dereferencable" means "should not be URNs". Or should not be
URNs in the sense you mean them. 

URN  Uniform Resource Name. 

1. An URI that has an institutional commitment to persistence,
availability, etc. Note that this sort of URI may also be a URL. See,
for example, PURLs. 

2. A particular scheme, urn:, specified by RFC2141 and related
documents, intended to serve as persistent, location-independent,
resource identifiers. 

Dereferencable URIs can be URNs in the first sense, but not in the
second sense (until those are dereferencerable!).

Come discuss XML and REST web services at:
  Open Source Conference: July 22-26, 2002,
  Extreme Markup: Aug 4-9, 2002,  www.extrememarkup.com/extreme/
Received on Monday, 1 July 2002 17:33:49 UTC

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