- From: Luc Moreau <L.Moreau@ecs.soton.ac.uk>
- Date: Tue, 14 Jun 2011 10:51:16 +0100
- To: public-prov-wg@w3.org
Hi Simon, I think we concur. I have adapted the example taking into account the terminology we defined with Jim yesterday. [1] It would be nice to get feedback from the working group, since we may want to reach agreement on Thursday. [1] http://www.w3.org/2011/prov/wiki/ConceptInvariantViewOnThing#Definition_by_Jim_and_Luc_v2_.28in_progress.29 Cheers, Luc On 06/13/2011 02:51 PM, Simon Miles wrote: > Luc, > > I think the example is helpful, and I suggest the discussion at the > end suggests that "invariant view or perspective on a thing" is not > quite right. All of i0, i1, i2, i3, i4 and i5 are more obviously > things than views: a file, or a file with some content, or the content > of a message. > > Instead, I suggest we mean "thing which is invariant from some > perspective", i.e. what we are talking about when referring to i0-i5 > is the thing, not the view. > > They are all invariant in some way. For i1 to i5 they are invariant > from the perspective of their content, at very least. For i0, it is > invariant from the perspective of its identity, i.e. the reason why we > talk about i0 as a thing at all is that it is consistently > (invariantly) considered the same file even if its contents are > changed. > > I suggest i0 can be included in the Mapping as follows: > "We have some Abstractions I -> I: > i1 -> i0 > i2 -> i0 > i3 -> i0" > (meaning the abstraction of i1 is i0 etc.) Jim used the term > "abstraction" in his proposal for "resource" definition, but other > terms may be as good. > > Thanks, > Simon > > On 13 June 2011 10:37, Luc Moreau<L.Moreau@ecs.soton.ac.uk> wrote: > >> Dear all, >> >> PROV-ISSUE-1 >> PROV-ISSUE-8 >> PROV-ISSUE-19 >> >> On June 7th [1], we agreed on "In a first instance, to define the >> necessary concepts >> that allow us to express the provenance of an invariant view or >> perspective on a thing". >> Putting this in practice turns out to be difficult. >> >> While the egg example is interesting, the scenario seems to evolve all >> the time. Also, I >> thought that, in a first instance, we may want to look at things that >> are digital, before >> seeing how our ideas extend to the non-digital world. >> >> Obviously, we have our data journalism example, but we seem to ignore. I >> think that we ignore >> it because: >> - it does not focus on changing things >> - it is not precise about how information is published/access, >> - it is quite long >> (I liked what Simon proposed for this example [2] and this inspired me here) >> >> >> To unblock the situation, I have: >> - drafted a smaller example [3], focusing on a file being updated >> - tried to illustrate examples of IVPTs in this example >> - highlighted an example of IVPT that I don't know how to handle. >> >> In this example, it would be good to see >> - where we have consensus >> - where we have disagreement >> - how we handle the outstanding example (i0) of IVPT >> >> Feedback by email or on wiki welcome! >> >> Cheers, >> Luc >> >> >> [1] http://lists.w3.org/Archives/Public/public-prov-wg/2011Jun/0096.html >> [2] http://lists.w3.org/Archives/Public/public-prov-wg/2011Jun/0069.html >> [3] http://www.w3.org/2011/prov/wiki/FileExample >> >> -- >> 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 >> >> >> >> ______________________________________________________________________ >> This email has been scanned by the MessageLabs Email Security System. >> For more information please visit http://www.messagelabs.com/email >> ______________________________________________________________________ >> >> > > > -- 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 Tuesday, 14 June 2011 09:52:06 UTC