- From: Art Barstow <barstow@w3.org>
- Date: Tue, 2 Oct 2001 09:19:00 -0400
- To: Aaron Swartz <aswartz@upclink.com>
- Cc: RDF Core <w3c-rdfcore-wg@w3.org>
The http://www.w3.org/2000/03/rdf-tracking/#rdfms-difference-between-ID-and-about issue says: [[ what is the difference between writing <Description ID="bar"> and <Description about="#bar"> ? Why is ID needed? ]] I recall the WG deciding that the subjects of the triples generated from these two Descriptions should be identical. However, it appears to me that neither test1.rdf or test2.rdf in [1] reflects that decision: [1] http://www.w3.org/2000/10/rdf-tests/rdfcore/rdfms-difference-between-ID-and-about/ It seems like test1.rdf should be something like: <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"> <rdf:Description rdf:ID="foo"> <rdf:value>abc</rdf:value> </rdf:Description> <rdf:Description rdf:about="#foo"> <rdf:value>abc</rdf:value> </rdf:Description> </rdf:RDF> and test1.nt should be: <http://www.w3.org/2000/10/rdf-tests/rdfcore/rdfms-difference-between-ID-and-about/test1.rdf#foo> <http://www.w3.org/1999/02/22-rdf-syntax-ns#value> "abc" . <http://www.w3.org/2000/10/rdf-tests/rdfcore/rdfms-difference-between-ID-and-about/test1.rdf#foo> <http://www.w3.org/1999/02/22-rdf-syntax-ns#value> "abc" . I agree with DanC that the wording of the Resolution in [1] which is: [[ Usage of an rdf:ID attribute to identify the subject of a description, is equivalent to usage of an rdf:about attribute with the the '#' character followed by the URI-encoded form of the content rdf:ID attribute. ]] could use a little work - perhaps citing the example from test2.rdf would help clarify the last part of the sentence. I also don't see how and error1.rdf directly relates to this specific issue. Art --- On Fri, Sep 28, 2001 at 04:08:14PM -0500, Aaron Swartz wrote: > On Thursday, September 27, 2001, at 10:49 AM, Dan Connolly wrote: > > > rdfms-difference-between-ID-and-about: What is the difference > > between using an rdf:ID attribute to 'create' a new > > resource and an > > rdf:about attribute to refer to it? (Aaron Swartz) > > > > This is done, right? There's a test case in the testing WD; > > it was marked "unapproved" but we approved it recently, > > no? Hmm... maybe that was something else we approved. > > Yes, we've never approved this test case (although we've come > perilously close). > > Throughout the work on the drafts I've had this in the back of > my head... I guess it's time to bring it back to the fore. > > Can I have one or two people to review the test case and > proposed resolution text? > > http://www.w3.org/2000/10/rdf- > tests/rdfcore/rdfms-difference-between-ID-and-about/ > > > Also, I would quibble with the "URI-encoded form of" language. > > Do you have a patch? > > > The test cases address this issue to my satisfaction, > > but perhaps this issue should stay open until the syntax > > spec has a formal description of how to convert RDF/xml > > syntax to n-triples. > > I sorta thought that's what this was supposed to decide... > > Do folks want to get this completed? > > -- > "Aaron Swartz" | The Semantic Web > <mailto:me@aaronsw.com> | <http://logicerror.com/semanticWeb-long> > <http://www.aaronsw.com/> | i'm working to make it happen
Received on Tuesday, 2 October 2001 09:19:01 UTC