# Re: mid and cid URLs

Roy T. Fielding (fielding@avron.ICS.UCI.EDU)
Tue, 21 Nov 1995 15:53:07 -0800

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    To: Keith Moore <moore@cs.utk.edu>

    Subject: Re: mid and cid URLs

    In-Reply-To: Your message of "Tue, 21 Nov 1995 15:35:12 EST."

                 <199511212035.PAA01709@wilma.cs.utk.edu>

    Date: Tue, 21 Nov 1995 15:53:07 -0800

    From: "Roy T. Fielding" <fielding@avron.ICS.UCI.EDU>

    Message-Id:  <9511211553.aa00755@paris.ics.uci.edu>

> URNs aren't terribly useful without an infrastructure that lets a
> client find a service location and access method for a particular URN.

Sorry -- can't let that one slide. URNs are quite useful without any
retrieval architecture. In fact, the retrieval architecture is the
only thing which is unnecessary, since ANY query or search system is
capable of serving as a retrieval architecture (including grep).
Furthermore, the binding of URN scheme to retrieval architecture can
be made at any time by the client, so whether or not a retrieval
architecture exists at the current time should be irrelevant, unless
someone screws up the URN by including the retrieval architecture in
the identifier.

...Roy T. Fielding
Department of Information & Computer Science (fielding@ics.uci.edu)
University of California, Irvine, CA 92717-3425 fax:+1(714)824-4056
http://www.ics.uci.edu/~fielding/

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