Re: PROV-ISSUE-288 (TLebo): ProvRDF issues for Usage [mapping prov-dm <-> prov-o]

Hi Tim, Paolo,

There was no response about my suggestion, but a similar suggestion
was made by Paolo, in prov-n document [1].

So, I have made entity optional in usage (in prov-dm) [2] and update the 
grammar in prov-n [1].

Paolo, can you update the example in [1]?

Thanks,
Luc

[1] 
http://dvcs.w3.org/hg/prov/raw-file/default/model/prov-n.html#expression-Usage
[2] 
http://dvcs.w3.org/hg/prov/raw-file/default/model/prov-dm.html#term-Usage

On 05/24/2012 01:28 AM, Timothy Lebo wrote:
> Luc, Satya,
>
> This issue was reassigned to DM from the "dm-provrdf mapping" product.
>
> Where do we stand on this "asymmetry" between an optional activity on 
> Generation but not Usage.
>
> Thanks,
> Tim
>
> On Mar 6, 2012, at 10:54 AM, Luc Moreau wrote:
>
>>
>> Hi Satya,
>> Then, the equivalent would be to make the entity of a usage optional 
>> (i.e. the object of involvement).
>> We can do it, if people feel it's appropriate.
>> Luc
>>
>> On 06/03/2012 15:43, Satya Sahoo wrote:
>>> Hi Luc,
>>> The issue is about having activity id as optional for Generation and 
>>> not for Usage - this is distinct from id of the Generation and Usage 
>>> record id.
>>>
>>> Thanks.
>>>
>>> Best,
>>> Satya
>>>
>>> On Mon, Mar 5, 2012 at 5:08 PM, Luc Moreau <L.Moreau@ecs.soton.ac.uk 
>>> <mailto:L.Moreau@ecs.soton.ac.uk>> wrote:
>>>
>>>     Hi,
>>>
>>>     Generation and usage have both optional id:
>>>     http://dvcs.w3.org/hg/prov/raw-file/default/model/prov-dm.html#term-Generation
>>>     http://dvcs.w3.org/hg/prov/raw-file/default/model/prov-dm.html#term-Usage
>>>
>>>     Luc
>>>
>>>
>>>     On 05/03/12 13:45, Provenance Working Group Issue Tracker wrote:
>>>
>>>         PROV-ISSUE-288 (TLebo): ProvRDF issues for Usage [mapping
>>>         prov-dm<->  prov-o]
>>>
>>>         http://www.w3.org/2011/prov/track/issues/288
>>>
>>>         Raised by: Satya Sahoo
>>>         On product: mapping prov-dm<->  prov-o
>>>
>>>             If activity id is optional for generation record, why is
>>>         it not so for usage record? These two points need to be
>>>         reconciled either way. (Satya)
>>>
>>>             Similar to generation, time can be "folded" into the
>>>         "attribute" list. (Satya)
>>>
>>>         http://www.w3.org/2011/prov/wiki/ProvRDF#Usage
>>>
>>>
>>>
>>>
>>>
>>>
>

-- 
Professor Luc Moreau
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University of Southampton          fax:   +44 23 8059 2865
Southampton SO17 1BJ               email: l.moreau@ecs.soton.ac.uk
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