- From: Xiaoshu Wang <wangxiao@musc.edu>
- Date: Sun, 28 Jun 2009 11:02:38 -0400
- To: "Martin J. Dürst" <duerst@it.aoyama.ac.jp>
- CC: Dan Brickley <danbri@danbri.org>, Larry Masinter <LMM@acm.org>, "'Pat Hayes'" <phayes@ihmc.us>, "'Eran Hammer-Lahav'" <eran@hueniverse.com>, "'Dan Connolly'" <connolly@w3.org>, "apps-discuss@ietf.org" <apps-discuss@ietf.org>, "www-tag@w3.org" <www-tag@w3.org>, "'URI'" <uri@w3.org>
Martin J. Dürst wrote: > On 2009/06/27 3:36, Xiaoshu Wang wrote: > > >> Thus, >> >> "http://danbri.org/foaf.rdf#danbri" denotes a person. >> "http://danbri.org/foaf.rdf#(application/rdf+xml)danbri" denotes an RDF >> node. >> "http://danbri.org/foaf.rdf#(application/xhtml+xml)danbri" denotes an >> HTML element ided "danbri >> > > I don't understand this. Why wouldn't I just use > http://danbri.org/foo.html#danbri > or anything similar for HTML fragments? (I'm assuming that foaf.rdf > returns an application/rdf+xml documend, and foo.html returns an > application/xhtml+xml document; the extensions may be meaningless to the > protocol but help to keep things apart for humans and computers.) > Well, then it just doesn't work for extending the referential range of URI to denote things beyond engineering entities. If you take a URI (fragment or not) to denote document (or its sub-structure), then the Web is not much useful to our daily use. If you take a URI to denote other things, like a human or person, then you cannot describe a document structure. And there is one URI, then you have to make a decision which one it denotes, right? > Also, I don't see much of a need to denote an RDF node per se. I'm sure > there are special applications one can come up with where reasoning > about RDF nodes per se is helpful/necessary/whatever, but for such > cases, there are other techniques available already. A single special > property and blank nodes would do the job. > Sure, we can use special property and blank nodes, but don't we need to know a URI does first before applying a property to that right? Xiaoshu > Regards, Martin. > > > >> When a URI owner uses content negotiation, they should make the content >> of each representation consistent. Of course, there could be >> inconsistencies if a user is not careful. But it is no different from >> the case when someonelse makes an inconsistent statement about >> "http://danbri.org/foaf.rdf#danbri". Inconsistent resources (whether it >> is caused by the same root-URI owner or not) will simply not be used >> (i.e., linked) by others, hence eventually die of isolation. >> This is the same old story from the httpRange-14. Once we straighten >> that out, all other problems are very easy to answer. >> >> Xiaoshu >> >> >> >> >> > >
Received on Sunday, 28 June 2009 15:03:25 UTC