W3C home > Mailing lists > Public > public-prov-wg@w3.org > May 2012

Re: generation by two distinct activities?

From: Luc Moreau <L.Moreau@ecs.soton.ac.uk>
Date: Thu, 17 May 2012 15:14:19 +0100
Message-ID: <EMEW3|5f2b0a7455e135b7e7594cfddc184f1eo4GFEM08L.Moreau|ecs.soton.ac.uk|4FB507BB.102@ecs.soton.ac.uk>
To: public-prov-wg@w3.org
Hi Tim,

This is "scruffy" provenance, and as such, should be accepted.
It wouldn't satisfy constraints though: so, it's not valid.


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 14:14:53 UTC

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