[towards UcdList 1.5] comments welcome on pos.moc in VEP-UCD-003

[Mireille LOUYS]

Hi Semantics ,

I would like here to discuss VEP-UCD-003 
<https://voparis-gitlab.obspm.fr/vespa/ivoa-standards/semantics/vep-ucd/-/blob/master/VEP-UCD-003.txt> 
in https://wiki.ivoa.net/twiki/bin/view/IVOA/UCDList_1-5_RFM

1- I summarize the rationale as :

How to classify a metadata record of type Multi Order coverage with a UCD ?

The Multi_Order Coverage description can be on many axes , separated or 
combined .

  * spatial  MOC
  * temporal T-MOC
  * spatial&temporal ST_MOC

we forsee also a Spectral flavor of MOC coverage ... like STE_MOC .

My question here is : what do we want to convey : the Multi_order nature 
and the axes described ?

this does not comply to the current structure of the UCD tree for pos, 
time,spect , etc.

I would prefer to have it as meta.moc , and decline the various flavors 
like : meta.moc.pos( or meta.moc.s), meta.moc.time( or meta.moc.t), 
meta.moc.st,

meta.moc.e for energy Mocs , if needed , etc...

2- If the MOC is described in a separate file, or extension, then 
various literals should be defined to designate the name of this data 
product_type. But it not a UCD.


Your comments and ideas welcome.

Thanks, Mireille

-- 
--
Mireille Louys,  MCF (Associate Professor)
Centre de données CDS		IPSEO, Images, Laboratoire Icube
Observatoire de Strasbourg	Telecom Physique Strasbourg
11 rue de l'Université		300, Bd Sebastien Brandt CS 10413
F- 67000-STRASBOURG		F-67412 ILLKIRCH Cedex
Tel: +33 3 68 85 24 34
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mail.ivoa.net/pipermail/semantics/attachments/20220117/de4ccc96/attachment.html>