- From: Stephen Buswell <StephenB@stilo.com>
- Date: Fri, 12 Apr 2002 12:25:08 +0100
- To: "'www-webont-wg@w3.org'" <www-webont-wg@w3.org>
I thought that as I was partly responsible for this being on the issues list, I would try to write it up. regards, stephen cardinality constructs and levels ================================= The language proposal paper (van Harmelen et al) contains different cardinality constructs in 'OWL-Lite' (optional/required; single/multivalued) and in OWL-Full (min-cardinality, max-cardinality). In addition, DAML has a construct 'cardinality'. At the f2f, there was a proposal to drop 'cardinality' as it can be expressed in terms of min- and max-. A number of WG members objected to this simplicification on grounds of usability. Following the level 1/ level 2 features review, and the decision to revisit the split, there was a suggestion that _all_ cardinality constructs should be in level 2. [the simplification argument above would suggest dropping optional/required and single/multivalued in favour of min- and max- if this were the case]
Received on Friday, 12 April 2002 07:37:45 UTC