- From: Timothy Lebo <lebot@rpi.edu>
- Date: Thu, 17 May 2012 12:51:29 -0400
- To: Luc Moreau <L.Moreau@ecs.soton.ac.uk>
- Cc: public-prov-wg@w3.org
On May 17, 2012, at 10:14 AM, Luc Moreau wrote: > Hi Tim, > > This is "scruffy" provenance, and as such, should be accepted. How is it scruffy? The entity (the fixed attributes) hasn't changed, only some assertions about its provenance has. > It wouldn't satisfy constraints though: so, it's not valid. So the distinct purchase activity imposed new fixed attributes of my water bottle (owner:Tim), without my permission? The entity that I'm talking about is only it's physical form (independent of squeezes). -Tim > > Luc > > On 05/17/2012 03:07 PM, Timothy Lebo wrote: >> prov-wg, >> >> I know this has been discussed before, but I'm still a bit confused. >> >> Can a single entity be generated by two distinct activities? >> >> I think in a distributed world of multiple perspectives, different asserters would look at the same entity and "carve up" activities differently that may not be necessarily the same. >> >> I'm sitting next to a water bottle. >> That same water bottle was generated by some activity in a factory, but it was also generated by my activity of driving to Target and handing over a Visa card. >> (and I don't care about reducing my bottle into "before I bought" and "after I bought" - I just want one bottle). >> >> Thanks! >> Tim >> >> >> > > -- > 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 Kingdom http://www.ecs.soton.ac.uk/~lavm > > >
Received on Thursday, 17 May 2012 16:52:06 UTC