- From: Luc Moreau <L.Moreau@ecs.soton.ac.uk>
- Date: Mon, 20 Jun 2011 09:03:04 +0100
- To: Graham Klyne <GK@ninebynine.org>
- CC: public-prov-wg@w3.org
Hi Graham, Thanks for your comments. You didn't respond to this point, I think: >What is provenance-uri? is it unique? is provenance found at one and only one place? is there one and only one authority to provide provenance information about something? (see http://www.w3.org/2011/prov/wiki/F2F1_Access_and_Query_Proposal#Comments) When we see a product/advert/etc (e.g. a box of cereals in a supermarket), we can scan its barcode, get its identity, and its provenance from the manufacturer. Your solution seems to support that. I would also like to go to a 'consumer group' offering a provenance service, and get a different account of the provenance of that product. That's why I suggest to separate the identity of the 'thing' from the location where we retrieve provenance. Of course, combing them (I and L) together provide a URI, from which provenance is retrieved. So, on this point, we agree: no point inventing another protocol to retrieve provenance. The key is to find where to retrieve provenance from. Cheers, Luc On 06/20/2011 08:19 AM, Graham Klyne wrote: > So that's it, I think my proposals cover the common cases. I > recognize that I have not solved the case of a non-dereferenceable > provenance URI, of where the original server does not provide a > provenance URI, or where the server needs to know if provenance may be > required later when serving a resource. But I see these as orthogonal > problems whose solutions we can better craft when we have a basic > common-case framework in place, and I can imagine possible solutions > for both of these (both essentially third-party information services > that do not need to be provenance-specific). I was always clear that > my proposals were not exhaustive, but I do think they form a > sufficient basis for initial work. -- 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 Monday, 20 June 2011 08:03:58 UTC