- From: Guus Schreiber <schreiber@cs.vu.nl>
- Date: Wed, 27 Feb 2008 11:52:03 +0100
- To: public-swd-wg@w3.org
A this week's telecon I promised to make a proposal about the semantic relation between skos:broader and skos:broaderMatch (and mutatis mutandis for skos:narrower and skos:related). This should be seen as a possible addendum to Antoine's proposed resolutions [2, 3]. My suggestion is that the following semantic relationship holds: skos:broaderMatch rdfs:subPropertyOf skos:broader . The usage pattern would be the following: - an schema owner who wants to make a distinction between broader and broaderMatch relations should use the subproperty typing - for such schema's it would be reasonable to assume that instances of skos:broader that are not instances of skos:broaderMatch, are intra-scheme relations. A few remarks: - Through the inScheme property of concepts you can in principle derive whether a skos:broader relation is inter-scheme or intra-scheme. In this sense skos:broaderMatch is just a shorthand c.q. syntactic sugar. This is actually the main argument against having the Match relations at all. Turning this around, we could also say that if a broaderMatch relation exists between two concepts, then they must be in different schemes (useful if the inScheme property is not defined by the schema owner). - One could also say that we it would be neater to have two subproperties of skos:broader, for both intra-scheme and inter-scheme relations. In my opinion this creates too much new vocabulary and is an unwanted complexity. - Another argument against this proposal is that some desired logical meta-properties (e.g. symmetry of skos:related) do *not* automatically inherit over the subproperty relation. Guus [1] http://lists.w3.org/Archives/Public/public-swd-wg/2008Feb/0095.html [2] http://lists.w3.org/Archives/Public/public-swd-wg/2008Feb/0076.html [3] http://lists.w3.org/Archives/Public/public-swd-wg/2008Feb/0077.html -- VU University Amsterdam, Computer Science De Boelelaan 1081a, 1081 HV Amsterdam, The Netherlands T: +31 20 598 7739/7718; F: +31 84 712 1446 Home page: http://www.cs.vu.nl/~guus/
Received on Wednesday, 27 February 2008 10:52:24 UTC