- From: Hausenblas, Michael <michael.hausenblas@joanneum.at>
- Date: Thu, 4 Oct 2007 16:36:30 +0200
- To: "W3C RDFa task force" <public-rdf-in-xhtml-tf@w3.org>
- Cc: <danbri@danbri.org>
The following is the report and a proposal on my
ACTION: Michael look for a more semantically correct predicate for tests
42-45
[recorded in http://www.w3.org/2007/09/06-rdfa-minutes.html#action14]
Background:
FOAF Vocabulary Specification 0.9 [1]
Problem:
TC42-45 use foaf:img - this is semantically wrong.
Analysis:
Relevant properties are
+ foaf:depiction [2],
+ foaf:depicts [3], which is the inverse of foaf:depiction, and
+ foaf:img [4], a sub-property of foaf:depiction
foaf:depiction has owl:Thing as domain, while
foaf:img has foaf:Person as domain. AFAIU there exists no
inverse of foaf:img (which is IMHO not relevant to our problem,
however:)
Conclusion:
Use foaf:depiction instead of foaf:img, as every resource
is an owl:Thing, and so is the Web page.
@DanB: Any objections?
Cheers,
Michael
[1] http://xmlns.com/foaf/0.1/
[2] http://xmlns.com/foaf/0.1/#term_depiction
[3] http://xmlns.com/foaf/0.1/#term_depicts
[4] http://xmlns.com/foaf/0.1/#term_img
----------------------------------------------------------
Michael Hausenblas, MSc.
Institute of Information Systems & Information Management
JOANNEUM RESEARCH Forschungsgesellschaft mbH
Steyrergasse 17, A-8010 Graz, AUSTRIA
<office>
phone: +43-316-876-1193 (fax:-1191)
e-mail: michael.hausenblas@joanneum.at
web: http://www.joanneum.at/iis/
<private>
mobile: +43-660-7621761
web: http://www.sw-app.org/
----------------------------------------------------------
Received on Thursday, 4 October 2007 14:36:48 UTC