Necessity of ActivityDescription [was: IVOA Provenance DM -RFC- answers to comments]

[Mireille LOUYS]

Hi Markus ,

The Prov-W3C is providing the general framework , and the concepts.  In 
practice, for each application domain one needs to bring more 
information about the usage , rules, specificities.

The Activity Class  for instance is a place holder, to gather info about 
a task but not precise enough

most of what we need to describe astronomical programs /tasks are not 
defined  in W3C .See for insance

  5.1.2Activity. in 
https://www.w3.org/TR/2013/REC-prov-dm-20130430/#section-entity-activity

Mireille

Le 26/11/2018 à 13:01, Markus Demleitner a écrit :
> Hi Mireille,
>
> Here's another topic from the RFC responses (keeping topics apart to
> try and have focussed discussions):
>
> On Sun, Nov 04, 2018 at 08:26:09PM +0100, Mireille LOUYS wrote:
>>>> http://wiki.ivoa.net/twiki/bin/view/IVOA/ProvenanceRFC
>>> I've posted the following to the Wiki, but I thought having it on the
>>> list might be more conducive to discussions, so here's what I my
>>> thoughts were while reviewing this.
>>>
>>> TL;DR: let's only have the core model in 1.0.  We can always add
>>> extensions in 1.1.
>> we need the ActivityDescription class and Parameter class to be able to
>> search for some specific processing type on the data.
>> Activity is only the process launched for the computation.
>> It does not hold the details of the methods , because those details are
>> factorised in the ActivityDescription class.
> You mean "Find me all source extractions being done on the images of
> this data collection"?  That *does* sound like a fairly basic thing to
> want to do, yes, and from what I see in the current Activity model, it
> would, indeed, seem to be impossible just with what's there.
>
> I'm sure the W3C has a plan for this -- do you know what it is?  Can't
> we just follow them or is there a use case we have they don't?
>
>     -- Markus

-- 
--
Mireille Louys,  MCF (Associate Professor)
CDS				IPSEO, Images, Laboratoire Icube
Observatoire de Strasbourg	Telecom Physique Strasbourg
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