W3C home > Mailing lists > Public > public-prov-wg@w3.org > March 2012

Re: PROV-ISSUE-29 (mutual-iVP-of): can two bobs be mutually "IVP of" each other [Conceptual Model]

From: Luc Moreau <L.Moreau@ecs.soton.ac.uk>
Date: Fri, 23 Mar 2012 15:00:45 +0000
Message-ID: <EMEW3|c78701d5bd0cf2ea4aaed8f122f250e7o2MF0p08L.Moreau|ecs.soton.ac.uk|4F6C901D.3080809@ecs.soton.ac.uk>
To: public-prov-wg@w3.org
Dear all,

This is the oldest issue in the tracker for prov-dm.

A week ahead of the release of prov-dm wd5 (for internal review), I propose
to close this issue.

Please have a look at the section [1] currently describing 
alternateOf/specializationOf.
As indicated yesterday, suggested english definition for these relations 
is appreciated.

Regards,
Luc


[1] 
http://dvcs.w3.org/hg/prov/raw-file/default/model/prov-dm.html#component4


On 07/11/2011 12:22 PM, Provenance Working Group Issue Tracker wrote:
> PROV-ISSUE-29 (mutual-iVP-of): can two bobs be mutually "IVP of" each other  [Conceptual Model]
>
> http://www.w3.org/2011/prov/track/issues/29
>
> Raised by: Stephen Cresswell
> On product: Conceptual Model
>
>
> As it currently stands, I believe that it does not exclude the possibility that two bobs may be mutually "IVP of" each other -
> i.e. you could have bobs A, B such that (B IVPof A)&  (A IVPof B), and this is surely not intended.
>
> This could arise if, for bobs A, B :
> - A and B both represent the same entity
> - A and B share some immutable properties, and they have corresponding values.
> - B has some immutable properties which correspond to mutable properties of A
> - A has some immutable properties which correspond to mutable properties of B
>
> Possibly the asserter-defined test (included in "IPV of" definition) that real world states modelled by A and B are "consistent" may disallow
> "IPV of" in this situation.  However, unless that is guaranteed, I think that the definition of "B IPV of A" (if it is still to have a definition) should additionally require that:
> "A has no immutable properties which correspond to mutable properties of B"
>
> Stephen
>
>
>
>
>    

-- 
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 Friday, 23 March 2012 15:01:23 GMT

This archive was generated by hypermail 2.2.0+W3C-0.50 : Thursday, 26 April 2012 13:06:59 GMT