From: Peter F. Patel-Schneider (pfps@research.bell-labs.com)
Date: 11/01/01
From: Frank van Harmelen <Frank.van.Harmelen@cs.vu.nl> Subject: Re: Validating daml+oil-ex.daml Date: Thu, 01 Nov 2001 00:08:57 +0100 > Jeff wrote: > > > > 2) The Person class has a restriction stating the a person can have only > > > one FullTimeOccupation, but FullTimeOccupation is not defined in the > > > ontology. The FullTimeOccupation class should be added to the ontology. > > Peter answered: > > > It probably should be, but it is not strictly necessary, as its position in a > > restriction makes it an rdf:Class. > > We've discussed this a few times in the past. It was then considered a deliberate feature of the example to show that DAML+OIL allows the usage of (e.g.) classes before they are "defined", or even when they are not "defined" at all (particularly in a Web context). > > I still consider this a feature of the example, not a bug. > > Frank. > ---- > I had forgotten this discussion, and I agree with Frank (feature, not bug). peter
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