3D data model

[Francois Bonnarel]

Doug, Igor, Philippe, Giovanni,
   Sorry to have given you maybe the impression to be a little bit "chilly".
I basically agree with what you say, Doug.
   My main concern was about keeping a consistency in the work of the DM
group. If "Characterization" is to be seen as some sort of federator DM
for Observations and Datasets, we absolutly need that newcomers from the IFU
community to have a look to the work done in Characterization.
   So , definitly I am really happy that we discuss these topics in the group
before and in Kyoto, and we get specialists (were they Euro3D consortiums
participants or not) coming in for that.

    What I am only reluctant to  is to create a  new DM Subgroup each time
a new point of view is coming in.
    Just to recall we allready have the following subgroups (or specific
data models efforts) in the DM Working group:
    Quantity
    STC
    SED/spectrum
    Characterization (and previously Observation)
    And since a couple of monthes: Catalog.
In addition  the "Radio" effort was always done in close connection to
Observation Characterization, as a kind of specialisation of it.
    The SED/spectrum was considered to be urgent enough to be separated
from a more general and slower effort on Characterization/Observation .
     I am just afraid that adding new subgroups will make the whole
Working group unmanageable and I would really like to have Jonathan's
advice about that.
     Do we really need a new one , or can we have the 3D input in the
existing ones (basically SED/pectrum and Characterization?)

   Cheers
François

PS: Euro3D is an European effort to federate IFU and other 3D spectroscopy
communities. Among other things they defined a new FITS format for 3D data
and they were really missing in the IVOA discussion. So I think it's really
good news, if Giovanni and others can participate.
 See http://www.aip.de/Euro3D/


  In addition  the "Radio" effort was always done in close connection to
Observation Characterization, as a kind of specialisation of it.
    The SED/spectrum was considered to be urgent enough to be separated
from a more general and slower effort on Characterization/Observation .
     I am just afraid that adding new subgroups will make the whole
Working group unmanageable and I would really like to have Jonathan's
advice about that.
     Do we really need a new one , or can we have the 3D input in the
existing ones (basically SED/pectrum and Characterization?)

   Cheers
Fran\347ois

PS: Euro3D is an European effort to federate IFU and other 3D spectroscopy
communities. Among other things they defined a new FITS format for 3D data
and they were really missing in the IVOA discussion. So I think it's really
good news, if Giovanni and others can participate.
 See http://www.aip.de/Euro3D/

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Francois   Bonnarel               Observatoire Astronomique de Strasbourg
CDS (Centre de donnees          11, rue de l'Universite
astronomiques de Strasbourg)    F--67000 Strasbourg (France)

Tel: +33-(0)3 90 24 24 11       WWW: http://cdsweb.u-strasbg.fr/people/fb.html
Fax: +33-(0)3 90 24 24 25       E-mail: bonnarel at astro.u-strasbg.fr
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