On Mon, 24 Apr 2006, Etan Wexler wrote:
Tantek Çelik wrote to the Microformats Discuss mailing list on 2006-04-24 in
Re: "uid" microformats? (was Re: [uf-discuss] ISBN mark-up)
(<mid:[EMAIL PROTECTED]>,
<http://microformats.org/discuss/mail/microformats-discuss/2006-April/003839.html>):
hCard normatively references vCard for semantics, which says:
3.6.7 UID Type Definition
Type purpose: To specify a value that represents a globally unique
identifier corresponding to the individual or resource associated
with the vCard.
Hi, I am joining the discussion with background of library system.
I don't think the definition of UID completely matches URI. The "globally
unique identifier" has a flavour of UUID, as the example in
vcard. UID:19950401-080045-40000F192713-0052
I guess one cannot be certain how "globally unique" is associated with
URI, how about http://localhost or file:///etc/hosts?
So I would advocate using URI instead of UID, URI is unambiguous, and
it would encourage choosing identifiers from established URI schema. So
people will use "urn:isbn:0950788120", instead of "isbn:0950788120" or
"asin:0950788120".
regards,
xiaoming
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