Re: Web Resource Identity
At 01:01 PM 6/28/1999 -0500, Paul Prescod wrote: >Jerome McDonough wrote: >> >>Two different >> URNs may refer to the same abstract work, and retrieve the same or different >> physical manifestations depending on the work identified, context of the >> resolver, >> 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 a server 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@l... | (......) 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 | |||| xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@i... Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ and on CD-ROM/ISBN 981-02-3594-1 To (un)subscribe, mailto:majordomo@i... the following message; (un)subscribe xml-dev To subscribe to the digests, mailto:majordomo@i... the following message; subscribe xml-dev-digest List coordinator, Henry Rzepa (mailto:rzepa@i...)
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