- From: pat hayes <phayes@ai.uwf.edu>
- Date: Wed, 13 Nov 2002 09:46:53 -0500
- To: Jeff Heflin <heflin@cse.lehigh.edu>
- Cc: www-webont-wg@w3.org
Jeff, your email got me thinking about the intricacies which arise when thinking about imports in the context of a changing world. Here are few more example scenarios. In each case A, B, C etc are people, P, Q, R, etc are chunks of OWL in documents. 'changes' means altering the RDF at a given URL. 1. A publishes P B publishes Q importing P A changes P (to P') C reads Q and imports P' Now, has C got it right, or not? Or should C have imported P (how?) Or should B have tracked A's changes (how?) 2. A publishes P B publishes Q C publishes R importing Q B changes Q to Q' importing P D reads R Has D got it right? This is really a special case of the first one, but since the change involves an imports, the effect is magnified, as it were. Obviously, the change could be arbitrarily far along an imports-reference chain. 3. A publishes P B publishes Q importing P A's server crashes C reads Q , concludes that the imports P is empty, archives the result A's server comes back online Now has C got it right? Or should C have refused to archive an empty-due-to-404 imports statement? Pat -- --------------------------------------------------------------------- IHMC (850)434 8903 home 40 South Alcaniz St. (850)202 4416 office Pensacola (850)202 4440 fax FL 32501 (850)291 0667 cell phayes@ai.uwf.edu http://www.coginst.uwf.edu/~phayes s.pam@ai.uwf.edu for spam
Received on Wednesday, 13 November 2002 09:46:22 UTC