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Re: PROV-ISSUE-201: Section 8 (PROV-DM as on Dec 5) [prov-dm]

From: Luc Moreau <L.Moreau@ecs.soton.ac.uk>
Date: Thu, 08 Dec 2011 11:17:33 +0000
Message-ID: <EMEW3|3565138918ecfc6db487519ff57741cdnB7BHb08L.Moreau|ecs.soton.ac.uk|4EE09CCD.3030302@ecs.soton.ac.uk>
To: public-prov-wg@w3.org

Hi Satya,

On 12/07/2011 02:24 AM, Provenance Working Group Issue Tracker wrote:
> PROV-ISSUE-201: Section 8 (PROV-DM as on Dec 5) [prov-dm]
>
> http://www.w3.org/2011/prov/track/issues/201
>
> Raised by: Satya Sahoo
> On product: prov-dm
>
> Hi,
> The following are my comments for Section 8 of the PROV-DM (as on Dec 5)
>
> Section 8.
> 1. "A resource is an instance of an entity in the world."
>
> Comment: This is not correct. Resource, identified by a URI, can include abstractions, for example class of instances - Car, Computer etc.
>    

The word instance is not used here as in instance vs class.
Will try to reprharse: what about

"In the context of PROV-DM, a resource is just a thing in the world


> 2. "A given identifier identifies a single entity within the scope of an account. Hence, below, all entities records have been given the same identifier but appear in the scope of different accounts."
>
> Comment: This is clearly against the notion of strict monotonicity in RDF as defined in RDF Semantics specification. In addition, this is also opposite to the global scope of URIs as described in the Web Architecture (I had raised this issue earlier also).
>    

There was a typo, and this sentence should ahve said "A given identifier 
identifies a single entity RECORD within the scope of an account. Hence, 
below, all entities records have been given the same identifier but 
appear in the scope of different accounts.".

This said, can you be specific, i simply don't understand what you are 
saying.

Surely, in rdf, with named graphs, you can write (sorry, can't write in 
rdf language):

graph1:
    ex:report isLikedBy Luc

graph2:
    ex:report isDislikedBy Satya

We can likewise take different perspective on a same resource in two 
different accounts.

But, we have now move again into PROV-ISSUE-183.

Luc

> Thanks.
>
> Best,
> Satya
>
>
>
>    

-- 
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, 8 December 2011 11:18:04 UTC

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