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If the author of the namespace spec can say on one hand that it is just a label, and on the other hand can say he won't use a URN that can't be dereferenced, isn't that a contradiction? Len http://www.mp3.com/LenBullard Ekam sat.h, Vipraah bahudhaa vadanti. Daamyata. Datta. Dayadhvam.h -----Original Message----- From: mrossi@c... [mailto:mrossi@c...] Why would you even try to dereference a name when it doesn't reference anything in the first place? Tim Bray To: xml-dev@l... At 08:15 AM 05/09/01 -0700, David Brownell wrote: >A better solution is to use only URNs as system IDs in XML, using >some URN resolution mechanism. There's a chicken-and-egg problem here. I am reluctant to start stuffing URNs in XML until there's a good chance that they can be dereferenced and used to retrieve things. At the moment, my own computer contains no URN dereferencing software that I'm aware of. On the other hand, I don't see a big chance that URN resolution software is going to become ubiquitous until there's a killer app for URNs; I suspect XML entity retrieval isn't it. So I'd say we're stuck with URLs for the moment. Using URNs in the PUBLIC ID slot seems plausible though. -Tim
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