# URN Requirements

Andrew Pam (avatar@notebook.aus.xanadu.com)
Sun, 15 May 94 15:23:36 EST

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    Message-Id: <9405150343.AA0138@notebook.aus.xanadu.com>

    Date: Sun, 15 May 94 15:23:36 EST

    From: avatar@notebook.aus.xanadu.com (Andrew Pam)

    To: Jared_Rhine@hmc.edu

    Subject: URN Requirements

Jared> As you can see, two different naming authorities are naming the same
Jared> object. Since naming authorities cannot interfere with each other's
Jared> name spaces, they will end up assigning different names to the same
Jared> object. Thus the same resource can have an "infinite number of URNs".
Jared> Does this knowledge help alleviate the Xanadu<->URI mapping?

Indeed, that appears to be a sensible interpretation of the draft; and as I
understand you to have suggested earlier, Xanadu URNs could be implemented by
making each server a naming authority. However, it appears that it would not
be possible to determine equality of URNs between different naming authorities.
Whether this operation is actually necessary I am not at present certain.

Jared> I may be mistaken in this evaluation. Perhaps it would be best to wait
Jared> until Monday to get some other viewpoints on this issue.

I look forward to it.

Share and enjoy,
*** AVATAR ***

Andrew Pam avatar@notebook.aus.xanadu.com
Manager, Serious Cybernetics avatar@jolt.mpx.com.au
Coordinator, Xanadu Australia <http://www.aus.xanadu.com/>
P.O. Box 409, Canterbury VIC 3126 Australia gopher gopher.aus.xanadu.com

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