- From: Emery, Pat <pemery@grci.com>
- Date: Tue, 3 Apr 2001 16:13:36 -0400
- To: "'pat hayes'" <phayes@ai.uwf.edu>
- Cc: www-rdf-logic@w3.org
The following is what I found about URI's the first time their definition was questioned: URI is one of three acroding to http://theoryx5.uwinnipeg.ca/CPAN/data/URI/URI.html <scheme>:<scheme-specific-part>#<fragment> <scheme>://<authority><path>?<query>#<fragment> <path>?<query>#<fragment> a URI can be a URL or a URN a URN is "urn:" <NID> ":" <NSS> example URN's are in this paper. http://earth.path.net/mitra/papers/vrml-urn.html#intro These guys will create a URN for you http://www.lub.lu.se/metadata/URN-help.html URN's seem to point to a service that will return a URL. It is a pointer or an indirection to a URL. That way you can give a URN for your information that will never change no matter where you move your information to. There is another thing called URC Universal Resource characteristics. This seems to be meta-data. Other than VRML the only other mention of non URL URI's I found was mention of Library systems that used URN's. Pat Hayes Wrote: >I would welcome that. I am still trying to discover what a URI is >beyond simply a URL. I suspect that it is to some extent an kind of >W3 dream: a vision of a future where everything is on the Web and >everything has a single True Name which all beings will recognize. I >don't believe this will ever happen, for various reasons, but I would >like to see these matters discussed, as I think it is important to >get everyone's assumptions (social, semiotic, philosophical, >political and technical) out into the open. Pat Emery
Received on Tuesday, 3 April 2001 16:13:58 UTC