- From: Jan Algermissen <algermissen@acm.org>
- Date: Mon, 31 Mar 2003 21:12:15 +0200
- To: Sandro Hawke <sandro@w3.org>
- CC: Dieter Köhler <dieter.koehler@philo.de>, www-rdf-interest@w3.org
Sandro, Sandro Hawke wrote: > > > since you might not be familiar with XTM syntax, the idea is > > that for example language.xtm provides elements such as > > > > <topic id="de"> > > ... > > </topic> > > > > witch 'produces' the URI > > > > http://www.topicmaps.org/xtm/1.0/language.xtm#de > > > > which can be used to identify the German language. > > I'm confused. The topic map spec says the id on a <topic> element > identifies that particular <topic> element in the document [1]. That > sounds in line with conventional XML use and with XPointer use [2], > not to mention conventional HTML usage. > > But that's at odds with saying that > http://www.topicmaps.org/xtm/1.0/language.xtm#de > identifies the German language. > > Did you mean to say instead that > http://www.topicmaps.org/xtm/1.0/language.xtm#de should be used as > a subjectIndicatorRef for the German language? That makes sense, but > it means it is *NOT* a good RDF identifier for the language. URI-Refs > occuring in RDF refer directly not indirectly as subject indicators. > (That is, "http://www.w3.org/Consortium/" as an RDF term refers to a > web page about the W3C, not to the W3C itself.) Now I am confused. Given the RDF statement http://www.w3.org/Consortium/ http://foo/director "Tim Berners Lee" doesn't 'http://www.w3.org/Consortium/' refer to the W3C itself? > > (I made a proposal that RDF URI-Refs should sometimes be seen as > subject indicators [4], but it was not accepted. After trying to > implement my proposal I'm not so fond of it myself.) I think that proposal was quite good. IMHO the question if a URI identifies a 'page' or an abstract concept is NOT part of the semantics of that particular URI but depends on the linking context (the context in whitch the URI is used as a reference). But I never managed to get that idea across I think... Jan > > -- sandro > > [1] http://www.topicmaps.org/xtm/1.0/#elt-topic > [2] http://www.w3.org/TR/2003/REC-xptr-framework-20030325/#shorthand > [3] http://www.topicmaps.org/xtm/1.0/#elt-subjectIndicatorRef > [4] http://www.w3.org/2002/12/rdf-identifiers/ -- Jan Algermissen http://www.topicmapping.com Consultant & Programmer http://www.gooseworks.org
Received on Monday, 31 March 2003 14:10:01 UTC