- From: Khalid Belhajjame <Khalid.Belhajjame@cs.man.ac.uk>
- Date: Sat, 16 Jul 2011 12:05:39 +0100
- To: Stephan Zednik <zednis@rpi.edu>, Luc Moreau <L.Moreau@ecs.soton.ac.uk>
- CC: public-prov-wg@w3.org
- Message-ID: <4E217083.2050006@cs.man.ac.uk>
>> >> However, each instance of Luc in Boston will have its own identity. >> Do we share this view? > Agreed, If we assume that the properties that are attached to a bob are not sufficient to uniquely identify it, then the state should not be used as a means for identifying bobs. In other words, two bobs that refers to the same state of the same entity, may have different identities. This raises the following question: Do we need to (uniquely) identify Bobs? Khalid > Yes. Lets bring up an example scenario so we have something more > visual to talk about :-) > > I've been thinking of what we called bob at the F2F1 as applying to a > continuous time interval which is a subset of the referenced entity's > continuous time interval for which some contextully-important mutable > characteristics of the referenced entity are held to immutable. > > |<------------------------------------ Physical Object A > Exists--------------------------------------------------------| > |<----- A OwnedBy Person B--->O<---A OwnedBy Person C------>O<---A > OwnedBy Person D--->| > > O is a ProcessExecution by which ownership of Physical Object A > changes. Agents involved in the ProcessExecution may include the > selling and buying Agents. > > In my simple diagram above, Person D could sell Object A back to > Person B at some point in time, and the two bobs that represent "A > OwnedBy Person B" would have their own identity because represent > different time intervals. > > --Stephan > >> >> Regards, >> Luc >> >> On 07/14/2011 04:00 PM, Stephan Zednik wrote: >>> >>> On Jul 14, 2011, at 8:51 AM, Cresswell, Stephen wrote: >>> >>>> Does a bob describe an entity over some continuous time interval? >>> >>> This description matches well with how I have been interpreting bob. >>> >>> --Stephan >> >> -- >> Professor Luc Moreau >> Electronics and Computer Science tel: +44 23 8059 4487 >> University of Southampton fax: +44 23 8059 2865 >> Southampton SO17 1BJ email:l.moreau@ecs.soton.ac.uk >> United Kingdomhttp://www.ecs.soton.ac.uk/~lavm >
Received on Saturday, 16 July 2011 11:06:24 UTC