- From: Sean B. Palmer <sean@mysterylights.com>
- Date: Wed, 16 May 2001 15:41:44 +0100
- To: "Charles McCathieNevile" <charles@w3.org>
- Cc: "Danny Ayers" <danny@panlanka.net>, <w3c-wai-er-ig@w3.org>
> OK, so this causes a problem for me. In some cases the > assertor will not be a person at all. [...] Of course: that's why "Person" is a *sub* class of "Assertor", not daml:sameClassAs. From the 0.9 N3 schema [1]:- earl:Person a rdfs:Class; rdfs:subClassOf earl:Assertor . Has this not come across in the graph somewhere? Hmm... is says "Person isA Assertor", which I guess means that all instances of person are also instances of Assertor. While that's correct, it should be noted that this isn't the only sub class allowed. The whole point of rdfs:subClassOf is that as well as being a transitive property (as indicated in the graph), it's also a refining mechanism - it allows you to specialize super classes. [1] http://www.w3.org/2001/03/earl/0.9.n3 -- Kindest Regards, Sean B. Palmer @prefix : <http://webns.net/roughterms/> . :Sean :hasHomepage <http://purl.org/net/sbp/> .
Received on Wednesday, 16 May 2001 11:48:55 UTC