- From: Frank Manola <fmanola@acm.org>
- Date: Mon, 19 Sep 2005 16:31:59 -0400
- To: "Uschold, Michael F" <michael.f.uschold@boeing.com>
- CC: public-swbp-wg@w3.org
Uschold, Michael F wrote: > Here is an outline draft for discussion at today's telecon. > > <<SemanticII-v4.htm>> > Mike Mike-- This note is a good start to an important subject. One comment that immediately came to mind when I read it was the following: At the end of section 3 is the bullet: > * /More expressive rules and constructs for mappings/: some of the > mappings between ontologies required for interoperability between > them may require constructs that go beyond the expressiveness of > RDF and OWL, such as operations on numbers and strings, @@ another > example here > This is certainly true, but in some cases those same constructs are useful *within* an ontology, rather than just in mapping between them. An example that immediately came to mind (because I've been working with it recently) is Body Mass Index. The NCI defines this as "a general indicator of the body fat an individual is carrying based upon the ratio of weight to height". However, other definitions of this concept (e.g., there's one in the NCI's Common Data Element browser) sometimes include a specific formula to be used in computing this quantity (patient body weight in kilograms divided by the square of his/her height in meters). Similar examples are far from rare (depending, of course, on the ontology). --Frank
Received on Monday, 19 September 2005 20:28:28 UTC