Vocabularising dataproduct_type

[Laurent MICHEL]

Markus,

I'm not sure that catalog data sets fit well within the definition of 
the measurements.
A catalog is not necessarily derived from a dataset (Obcore P29 makes 
that distinction)

Appart of this, I'm rather happy with this proposal.

Laurent

Le 09/03/2020 à 15:56, Markus Demleitner a écrit :
> Hi,
> 
> With apologies for the wide crosspost, I'd suggest followups to
> DAL.
> 
> In the past few weeks, in two different use cases it was felt
> desirable to have the terms for data product types introduced by
> Obscore outside of Obscore:
> 
> (a) as qualifiers in media types (also beyond datalink).
>      http://mail.ivoa.net/pipermail/dal/2019-December/008252.html
> 
> (b) to declare the sort of data returned from SSAP services,
>      http://mail.ivoa.net/pipermail/registry/2020-February/005410.html
> 
> In this latter context I've now created a draft vocabulary from
> obscore dataproduct type.  It has draft status at this point, so it's
> still cheap to change definitions, add terms, introduce structure,
> etc.  Or to cancel the entire effort.
> 
> The current vocabulary on http://www.ivoa.net/rdf/product-type .
> 
> My current plan is have this vocabulary reviewed as part of the
> review of SimpleDALRegExt 1.2.
> 
> So... what do you think?
> 
> Here are a few points I'd particularly request feedback on:
> 
> (a) The vocabulary name: I went for product-type (singular), as the full
>      term URI then looks like http://www.ivoa.net/rdf/product-type#image
>      or so, which I find nice.  If someone calls for having "data" in
>      there (data-product-type or dataproduct-type or whatever), I won't
>      quarrel.  I still figure we won't have types of any other sort of
>      products and hence saving five characters seems worth the
>      deviation from obscore terminology.
> 
> (b) I've made the vocabulary largely flat; only "sed" quite clearly is a
>      "spectrum".  Do you see more structure in these concepts?
> 
> (c) I've streamlined some of the descriptions from Obscore. For
>      instance, I've removed the language on formats in the cube
>      definition, as it seems somewhat ephemeral, and I've tried to be
>      more precise in sed to get its primary characteristic in focus.  And
>      I've made the definition for visibility very short -- radio folks,
>      complain if you disagree.
> 
> Thanks,
> 
>              Markus
> 

-- 
---- Laurent MICHEL              Tel  (33 0) 3 68 85 24 37
      Observatoire de Strasbourg  Fax  (33 0) 3 68 85 24 32
      11 Rue de l'Universite      Mail laurent.michel at astro.unistra.fr
      67000 Strasbourg (France)   Web  http://astro.u-strasbg.fr/~michel
---