- From: Richard H. McCullough <rhm@cdepot.net>
- Date: Mon, 18 Aug 2003 11:20:45 -0700
- To: "McCool, Rob" <robm@robm.com>
- Cc: "www-rdf-interest at W3C" <www-rdf-interest@w3.org>, "KR-language" <KR-language@YahooGroups.com>
Both RDF & OWL seem to treat this like a "syntactic" issue. i.e., I don't think there's any real semantics behind the choice of literal or resource. But it does make a difference in MKR. The OWL distinction is DatatypeProperty vs. ObjectProperty which roughly corresponds to attribute vs. relation in MKR. Basically, an attribute is a property of a single entity, while a relation (my narrow sense of the word) is a property involving two or more entities. Here are some simple examples. attribute: length, mass, color relation: before, above, father I make the same distinction between actions and interactions. For example. action: move, eat, speak interaction: causality, concert, conversation Dick McCullough knowledge := man do identify od existent done; knowledge haspart proposition list;
Received on Monday, 18 August 2003 14:26:52 UTC