- From: Dan Brickley <danbri@w3.org>
- Date: Thu, 6 Nov 2003 09:08:58 -0500
- To: Patrick Stickler <patrick.stickler@nokia.com>
- Cc: Bill de hÓra <dehora@eircom.net>, www-rdf-rules@w3.org
* Patrick Stickler <patrick.stickler@nokia.com> [2003-11-06 16:00+0200] > On 2003-11-05 20:18, "ext Dan Brickley" <danbri@w3.org> wrote: > > I think Edutella have something in this vein. Sorry > > I'm in a rush or I'd do the googling for links. Also this approach > > doesn't allow blanks for property names, since RDF/XML doesn't allow > > that. > > That is true, though I've yet to see a compelling query associated > with a real-world use case that does not specify a property. Before we added rdfs:member (superproperty of _1 _2 etc)., there was an RSS 1.0 use case, finding all the things in an rdf:Seq. Also one might want to use a query that had a clause picking out all properties of rdf:type owl:UnambiguousProperty. I do something like this for identity reasoning / node merging in FOAF apps, for eg. But I agree it tends to be rare to have to do this in application queries. Dan
Received on Thursday, 6 November 2003 09:09:18 UTC