- From: Peter F. Patel-Schneider <pfps@research.bell-labs.com>
- Date: Mon, 10 Mar 2003 09:07:35 -0500 (EST)
- To: costello@mitre.org
- Cc: www-rdf-logic@w3.org
From: "Roger L. Costello" <costello@mitre.org> Subject: Re: Treating a class as both an individual and a class? Date: Mon, 10 Mar 2003 08:08:06 -0500 > > Peter, I sure appreciate all of your excellent comments. Thanks! > > > > Is this good modelling? Does it effectively model the major > > > features of my hometown? > > > > No, this is not good modelling. > > Okay then I need help then with creating an example that shows a class > being used as both an individual and as a class. Could you give me an > example of the class River being used as an individual? (I already have > many examples of using River as a class.) /Roger I'm probably not a good person to ask, as I don't generally do that. However, a possible example would be modelling airline flights, where the concept of an airline flight would be a metaclass, a flight number would be a class (and an instance of the metaclass), and a particular flight (on a particular day) would be a non-class instance. You could then have properties of flight numbers (scheduled departure, destination, etc.) and properties of actual flights (actual departure, etc.). peter
Received on Monday, 10 March 2003 09:07:45 UTC