Re: Web Resource Identity
Walter Underwood wrote: > > Don't forget content negotiation. Those are different manifestations of the same resource. I think that we eventually need to be able to address manifestations so that I could make a URL to the MS Word version of a document or to the PDF version explicitly...or even to the document with a particular CSS stylesheet applied. > Then there are dynamic pages--what is "identity" for a weather > station? The page is in some sense "the same page", but the > content depends on the temperature. Human beings decide identity. If we think of the weather page as a "thing", then we should assign it a Unique ID so that we can refer to it. Anyhow, if the two manifestations were retrieved with the same URL then the answer is already in the W3C specs: they are the same object. It is the multiple URL->one resource case that the Web does not currently seem to support. > Finally, some systems ignore case in file names, and relative > URLs are resolved according to the URL you used in the GET, > so we see: > > http://www.corp.com/dir/index.html > http://www.corp.com/DIR/index.html > ... > with combinatorial explosions on longer URLs. And a nightmare > for robots and caching proxies. Globally unique identifiers would help with that. Dynamic content will always be a nightmare but XML node inclusion could help by separating out the dynamic parts from the static parts. -- Paul Prescod - ISOGEN Consulting Engineer speaking for only himself http://itrc.uwaterloo.ca/~papresco Alabama's constitution is 100 years old, 300 pages long and has more than 600 amendments. Highlights include "Amendment 393: Amendment of Amendment No. 351", "Validation of Laws Regulating Court Costs in Randolph County", "Miscegenation laws", "Bingo Games in Russell County", "Suppression of dueling". - http://www.legislature.state.al.us/ALISHome.html 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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