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Re: PROV-ISSUE-369 (drop-startByActivity): Should we drop wasStartedByActivity? [prov-dm]

From: Timothy Lebo <lebot@rpi.edu>
Date: Tue, 1 May 2012 17:37:40 -0400
Cc: Provenance Working Group <public-prov-wg@w3.org>
Message-Id: <F8B8A8EF-4A2F-42C3-9E05-6679CB3C6FE0@rpi.edu>
To: Jun Zhao <jun.zhao@zoo.ox.ac.uk>

On May 1, 2012, at 4:16 AM, Jun Zhao wrote:

> My only worry I that people might use wasInformedBy to express this 'trigger' relationship between activities, without noticing the subtlety or choice. What does MacTed say about wasInformedBy?
> 


Quotes from http://www.w3.org/2011/prov/wiki/Prov-o_draft_review_2_April_2012#Ted :

  Further, I think there should be a new prov:wasStartedByAgent
  (and *possibly* prov:wasStartedByEntity, if an Entity can 
  act...), parallel to prov:wasStartedByActivity.


  It seems to me that prov:wasStartedBy is the indefinite super-
  property, used when you *don't know* what class started the 
  current Activity, with subproperties of prov:wasStartedByAgent 
  and prov:wasStartedByActivity (and *possibly* 
  prov:wasStartedByEntity), which are used when you *do* know 
  the class of the starting, er, entity (not prov:Entity, but 
  general RDF entity).


-Tim




> Jun
> 
> Sent from my iPad
> 
> On 30 Apr 2012, at 11:57, Provenance Working Group Issue Tracker <sysbot+tracker@w3.org> wrote:
> 
>> PROV-ISSUE-369 (drop-startByActivity): Should we drop wasStartedByActivity? [prov-dm]
>> 
>> http://www.w3.org/2011/prov/track/issues/369
>> 
>> Raised by: Luc Moreau
>> On product: prov-dm
>> 
>> 
>> There are regular comments about wasStartedByActivity.
>> 
>> MacTed was saying why don't we also have wasStartedByAgent.
>> 
>> Someone else  was saying, why don't we have wasEndedByActivity? ... and ByAgent.
>> 
>> In the spirit of simplification, we could drop the concept.
>> Whenever we want to write
>> 
>> wasStartedByActivity(a2,a2)
>> 
>> we would instead have to write
>> 
>> wasStartedBy(a2,e)
>> wasGeneratedBy(e,a1)
>> 
>> for some entity.  
>> 
>> 
>> Thoughts?
>> Luc 
>> 
>> 
>> 
> 
> 
Received on Tuesday, 1 May 2012 21:38:11 GMT

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