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- From: Jerome McDonough <firstname.lastname@example.org>
- To: xml-dev <email@example.com>
- Date: Fri, 28 May 1999 12:29:58 -0700
At 01:01 PM 6/28/1999 -0500, Paul Prescod wrote:
>Jerome McDonough wrote:
>> URNs may refer to the same abstract work, and retrieve the same or
>> physical manifestations depending on the work identified, context of the
>> etc. When you have two URNs identifying an abstract concept, I don't see
>> how you can reliably determine computationally that they both identify the
>> same thing.
>Why can't you just ask the server? "I've got these two URNs. What's the
>Unique ID of the thing that they refer to?"
Well, you've already got two unique identifiers for an abstract work. For
to know whether or not those identifiers identify the *same* abstract work,
either someone's going to have to established a linking database somewhere
mapping the two together (not a requirement of any of the URN architecture
proposals and shouldn't be) or your server is going to have to see what
the identifiers resolve to, and try to make a determination based on that
whether the URNs identify the same thing. But relying on the latter is truly
ugly and unreliable. And I honestly don't anticipate too many people going
to the effort of the former.
Jerome McDonough -- jmcdonou@library.Berkeley.EDU | (......)
Library Systems Office, 386 Doe, U.C. Berkeley | \ * * /
Berkeley, CA 94720-6000 (510) 642-5168 | \ <> /
"Well, it looks easy enough...." | \ -- / SGNORMPF!!!
-- From the Famous Last Words file | ||||
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