- From: Luc Moreau <L.Moreau@ecs.soton.ac.uk>
- Date: Thu, 28 Jul 2011 15:49:49 +0100
- To: Graham Klyne <GK@ninebynine.org>
- CC: public-prov-wg@w3.org
Except that we should recognize that the document is to be identified for its provenance-uri(s) to be found. Luc PS. Adding PROV-ISSUE-46 for it to be indexed in that thread too by tracker. On 07/28/2011 03:22 PM, Graham Klyne wrote: > I'll propose that is an orthogonal issue, raised for ISSUE-46 and best > discussed there, not as part of the third party service structure. > > #g > -- > > Luc Moreau wrote: >> Hi Graham, >> >> As for ISSUE-46, where do I find the information identifier, when I >> consider the case >> of an html file on a disk? >> >> I think there is a range of ways of "identifying documents", >> sometimes coexisting. >> The specification should identify the rules that prevail to determine >> the document exact identity. >> >> I can see all the following identifiers having some value: >> >> -a document-identifier embedded in the html file (useful for html >> file on disk) >> -a document-identifier in the http header (would identify the actual >> bob returned) >> -the url used to retrieve the document (useful for cool urls) >> >> >> Luc >> >> On 07/28/2011 01:40 PM, Graham Klyne wrote: >>> I believe this is addressed by section 3.4 >>> (http://dvcs.w3.org/hg/prov/raw-file/tip/paq/provenance-access.html#third-party-services), >>> which addresses precisely the use-case described by this issue. >>> >>> Specifically, if I have the URI of a third party provenance service, >>> and a URI or identifying information about the target resource, a >>> SPARQL query can be constructed to locate the required provenance >>> URI and/or data from that third party. I think availability of such >>> information is pretty much a prerequisite for creating any kind of >>> third party provenance service - I can't see how it might work >>> without that. >>> >>> I think this may have more to do with discussion around ISSUE 46 >>> (http://www.w3.org/2011/prov/track/issues/46) - the extent to which >>> the provenance information itself identifies the entity whose >>> provenance it describes. >>> >>> #g >>> -- >>> >>> >>> Provenance Working Group Issue Tracker wrote: >>>> PROV-ISSUE-47 (third-party-provenance): How to obtain provenance >>>> from a third party known by the user [Accessing and Querying >>>> Provenance] >>>> >>>> http://www.w3.org/2011/prov/track/issues/47 >>>> >>>> Raised by: Luc Moreau >>>> On product: Accessing and Querying Provenance >>>> >>>> I don't understand how the proposal allows us to address >>>> http://www.w3.org/2011/prov/wiki/ProvenanceAccessScenario. >>>> >>>> Specifically, I consider the case where the user wants to access >>>> provenance from a third-party they know (e.g. a favorite consumer >>>> group). >>>> >>>> Using section 3, I can obtain one or more provenance-uris, which >>>> are known from the responding server or the document creator. >>>> If my third-party is not known by the responding server or document >>>> creator, I have no mechanism to obtain a provenance-uri since I >>>> don't have have an identifier for the document I currently hold. >>>> >>>> A solution could be: we need a BOB-identifier to be passed around >>>> (as suggested in ISSUE-46) and a mechanism that resolves a >>>> BOB-identifier to provenance-uri. >>>> >>>> >>>> >>>> >>> >>> >> > -- 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, 28 July 2011 14:50:19 UTC