- From: Luc Moreau <L.Moreau@ecs.soton.ac.uk>
- Date: Tue, 28 Jun 2011 17:03:32 +0100
- To: public-prov-wg@w3.org
Hi Simon, If we agree with the definition I suggested (possible Jim's too, I am not sure), it shows that version (or is revision of) is not a primitive notion in PIL, but can be derived from more primitive concepts. I think we still need to take a view on this concept, since it is part of the charter, and we can't simply ignore it. Luc On 06/28/2011 03:36 PM, Simon Miles wrote: > OK, but I think that defining it generally even in a profile may go > too far. Given that "version" means quite different things in > different application contexts, as I think you capture by the notion > of typed process executions in your definition, is there a value in > defining it generally at all? I could imagine it may be defined in > various ways in a few different domain-specific profiles, and there > could be a mappings from the PIL model to version in DC and elsewhere > etc., but defining it as part of the model seems to help no-one while > adding to the complexity. This differs from time, where though it has > different conceptions in different domains, I could imagine a default > conception defined in a profile would be useful for applying the model > to common kinds of web resource. > > Thanks, > Simon > > On 28 June 2011 15:25, Myers, Jim<MYERSJ4@rpi.edu> wrote: > >> I was just trying to use version as an example of IVP in the last email, hence it shouldn't be different. Looking at whether we need version explicitly as a concept - perhaps it is a 'profile' like time... >> >> Jim >> >> >>> -----Original Message----- >>> From: public-prov-wg-request@w3.org [mailto:public-prov-wg- >>> request@w3.org] On Behalf Of Simon Miles >>> Sent: Tuesday, June 28, 2011 10:18 AM >>> To: Provenance Working Group WG >>> Subject: Re: prov-issue-11: what is version? >>> >>> Luc, Jim, >>> >>> I notice that you two take different views on what the concept "version" is >>> intended to describe. With the example things: >>> T1. The government data >>> T2. The government data with incorrect values >>> T3. The government data with corrected values Under Luc's definition T3 is >>> a version of T2, but under Jim's definition T3 is a version of T1. >>> >>> I'm not clear that "version", under either definition, is beneficial to keep in >>> the model. Jim's definition seems to be only subtley if at all different from >>> IPVT, while Luc's is distinct but just a simple composition of other concepts >>> which could be recognised by any query. >>> >>> My counter-proposal would be to remove "version" from the model. >>> Simplicity of the standard is surely a good thing where possible. >>> >>> If that is unacceptable, I think that Luc's definition makes sense but would >>> be more clearly called "is revision of" or similar. >>> >>> Thanks, >>> Simon >>> >>> On 27 June 2011 16:11, Luc Moreau<L.Moreau@ecs.soton.ac.uk> wrote: >>> >>>> Hi all, >>>> >>>> Exploiting the most recent definitions of Derivation and IVP of, I >>>> tried to propose a definition of version. >>>> http://www.w3.org/2011/prov/wiki/ConceptVersion#Definition_by_Luc >>>> >>>> What do you think? >>>> Regards, >>>> Luc >>>> >>>> -- >>>> 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 >>>> >>>> >>> ______________________________________________________________ >>> ________ >>> >>>> >>> >>> >>> -- >>> Dr Simon Miles >>> Lecturer, Department of Informatics >>> Kings College London, WC2R 2LS, UK >>> +44 (0)20 7848 1166 >>> >> >> ______________________________________________________________________ >> 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, 28 June 2011 16:30:14 UTC