VOCatalog presentation desired? (Was: Re: Prospective agenda for VOQL session in Madrid

[Pedro Osuna]

Dear all,

I appreciate the effort that Brian is doing in defining his catalogue
data model, but there has not been any consensus yet on the type of
Catalogue data model that the IVOA will endorse.

As some of you -including Brian- know (from the Catalogue Data Model
mail list) I have called for a meeting on this issue before the interop
(in particular on monday the 5th in the afternoon)  to clarify precisely
many of these issues. After that meeting, I planned to have small
meetings to the chairmans of those groups with which the Catalogue DM
might have a relation (in particular, and as reported in Kyoto, with the
SkyNode - one of the hypothetical Catalogue DM consumers).

Therefore, you can allocate time if you want to Brian, but not to report
on the IVOA Catalogue Data Model, which I will do in the Data Model
session as per Jonathan's agenda.

I will be happy to re-report at the VOQL session should you consider it
necessary.

Cheers,
P.




On Wed, 2005-09-21 at 14:45, Brian Thomas wrote:
> On Wednesday 21 September 2005 03:43, Maria A. Nieto-Santisteban wrote:
> >         * Table data model (standard column names) Where does the Catalog
> > Data Model WG stand?
> > 
> 
> 	Hi,
> 
> 	I am not sure that I can speak for the Catalog working group, but I can
> 	present a VO Catalog model which has been proposed and is not (apparently)
> 	at odds with the other models presented by the WG. 
> 
> 	This catalog model is built for the purposes of being queried,
> 	holding a wide selection of the data which are present in the VO, is developed 
> 	so that it can overlay a series of SQL tables/databases (e.g. SkyNodes 
> 	accessed by ADQL), and can eventually be used in conjunction
> 	with an advanced form of UCD..."UCD3". 
> 
> 	The query mechanism for this catalog is made in terms of "XQuery+" (an 
> 	extended form of the standard XQuery). I can try to fit this all in to 10 min 
> 	presentation. 
> 
> 	Some materials (all which is older, and not terribly organized at the moment,
> 	and which I am in the process of updating) for this model may be found at :
> 
> 	http://archive.astro.umd.edu/VOCatalog
> 
> 	and 
> 
> 	http://archive.astro.umd.edu/NX_api/index.html
> 
> 	I shall also be presenting a poster on this work at the ADASS meeting which
> 	proceeds the IVOA.
> 
> 	Thanks,
> 
> 	=brian
-- 
Pedro Osuna Alcalaya

ESA 
Science Archives System Engineer
Science Archive Team
European Space Astronomy Centre
(ESAC/ESA)
e-mail: Pedro.Osuna at esa.int
Tel + 34 91 8131314
---------------------------------                                                                                
European Space Astronomy Centre
European Space Agency
P.O. Box 50727
E-28080 Villafranca del Castillo
MADRID - SPAIN