- From: Myers, Jim <MYERSJ4@rpi.edu>
- Date: Fri, 5 Aug 2011 13:56:07 -0400
- To: Graham Klyne <GK@ninebynine.org>
- CC: Luc Moreau <L.Moreau@ecs.soton.ac.uk>, <public-prov-wg@w3.org>
> The question I'm stumbling toward is: if we need accounts to analyze process > executions at different granularities, why do we not need something similar for > entities? (Maybe its an endurant/perdurant thing?) > Yes. I think there are several ways accounts will differ: * PE granularity * Bob/Entity granularity * IVP-style view transitions - you reported a document being published, I saw files moving around and those are related, but not just by changes in granularity. * Completeness - different asserters may know more or less about parts of the provenance so they will perhaps have different amounts of attributes on Bobs or PEs that might complement each other (a radar knows object and speed, the camera can add color, but they both share a sense of what Bobs and PEs exist * Truthfulness - Asserters may lie or be mistaken. Having the idea of account and asserter enable on to reference the individual provenance traces provided by asserters and to think about combining them. I don't think that any of these uses above requires more than that, nor are there different in what they require from a definition of account - both good things! Jim
Received on Friday, 5 August 2011 17:56:41 UTC