- From: Peter Crowther <Peter.Crowther@networkinference.com>
- Date: Sun, 16 Mar 2003 20:28:28 -0000
- To: "pat hayes" <phayes@ai.uwf.edu>
- Cc: <www-webont-wg@w3.org>
> From: pat hayes [mailto:phayes@ai.uwf.edu] > > >"people who have at least three values for property x." > > > >where x is a data valued property. I, too, struggle to think > of an example > >where one would actually want to use such a construct (but am open to > >suggestion).... > > People who own three or more homes, people with at least three > sources of income, people with at least three children, people with > with at least three nationalities, people who have travelled to more > than three foreign nations during the last six months,.... All good examples of cardinality contraints to objects; I have to say that I'm not convinced that any of the following are naturally datatypes: - homes - sources of income - children - nationalities - travel to a given nation during a date range Nationality, in my view, comes closest; but why is this better as a datatype than an object? - Peter
Received on Sunday, 16 March 2003 15:28:44 UTC