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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: Wed, 21 Dec 2011 21:15:04 +0000
Message-ID: <EMEW3|fc489d2d08bfc9f9b2fe4e3451c91279nBKLF908L.Moreau|ecs.soton.ac.uk|4EF24C58.5010601@ecs.soton.ac.uk>
To: public-prov-wg@w3.org
Hi Satya,

I believe that now the two issues you have flagged here have been addressed.

For item 1, we have rephrased as outlined.

For item 2, we have clarified the notion of identifier, see latest email 
in ISSUE-183.

I therefore propose to close this issue (or continue the debate on 
ISSUE-183,
if required).

Cheers,
Luc

On 08/12/11 11:17, Luc Moreau wrote:
>
> 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
>>
>>
>>
>
Received on Wednesday, 21 December 2011 21:15:35 UTC

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