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Re: PROV-ISSUE-149 (revision-asserter): Why does revision record include an asserter? [Data Model]

From: Simon Miles <simon.miles@kcl.ac.uk>
Date: Wed, 30 Nov 2011 14:35:08 +0000
Message-ID: <CAKc1nHdoM80BiXWS+EdckgnFsctRSsu3ymuj25kJD=rhdtZOXA@mail.gmail.com>
To: Provenance Working Group WG <public-prov-wg@w3.org>
Hi Luc,

Yes, the issue can be closed.

Minor note - the constraint mentions "wasDerivedFrom(id, e2,e1)", but
this ASN does not seem to be defined in the derivation section. I
think it should be "wasDerivedFrom(id, e2, e1, attrs)". Or does it
mean empty attribute set (so default prov:steps="n")?


On 30 November 2011 13:07, Luc Moreau <L.Moreau@ecs.soton.ac.uk> wrote:
> Hi Simon,
> We have made some changes on this section in the latest WD.
> We are proposing to close,
> Can you confirm it is fine?
> Regards,
> Luc
> On 11/11/2011 12:01 PM, Provenance Working Group Issue Tracker wrote:
>> PROV-ISSUE-149 (revision-asserter): Why does revision record include an asserter? [Data Model]
>> http://www.w3.org/2011/prov/track/issues/149
>> Raised by: Simon Miles
>> On product: Data Model
>> The Revision record contains its own asserter, but it is unclear why.
>> "Deciding whether something is made available as a revision of something else usually involves an agent who represents someone in the world who takes responsibility for declaring that the former is variant of the latter...
>> A revision record...
>> may refer to a responsible agent with identifier ag."
>> The agent appears to be just the entity deciding whether to make the assertion or not (whether one entity is a revision of another). This is no different from any other assertion: it is always in some asserter's perspective that the assertion is true. We don't include the asserter explicitly in Used, Generated, Derived or other records, so why do we for Revision?
> --
> 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

Dr Simon Miles
Lecturer, Department of Informatics
Kings College London, WC2R 2LS, UK
+44 (0)20 7848 1166

Provenance in Agent-mediated Healthcare Systems:
Received on Wednesday, 30 November 2011 14:35:43 UTC

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