Observation/characterization/provenance discussion

[Arnold Rots]

Francois,

I guess this discussion largely passed me by.
Let me point out, though, that the ObservatoryLocation is fully
defined in STC's ObsDataLocation. How does this provenance discussion
relate to that specification?

  - Arnold

bonnarel at alinda.u-strasbg.fr wrote:
[ Charset ISO-8859-1 unsupported, converting... ]
> 
>     At the end of the Cambridge IVOA meeting last year, a team formed to
> address the problem of building an Observation DM by extending 
> characterization
> and defining a basic Provenance model.
> 
>     This team which I am trying to coordinate ( is that possible ;-) ? 
> ) is made of (by chronological joigning order)
> Mireille Louys
> Anita M. S. Richards
> Fran?ois Bonnarel
> Igor Chilingarian
> Fabien Chereau
> Andreas Wicenec
> JONATHAN Mc Dowell
> Gerard Lemson
> Alberto Micol
> Peter skoda
> (all above from Cambridge UK meeting)
> __________________________
> Juan de Dios Santander Vela
> Nausicaa Delmotte
> Miguel Cervino
> Arnold Rots
> Carlos Rodriguo
> Gretchen Greene
> Tamas Budavari
> Alex  Szalay
> Bruno Rino
> Thomas Boch
> Doug Tody
> 
> The team had a mailing list, some teleconfs, partial side-meeting in 
> Garching and Trieste.
> 
> Recently we had a very hot discussion on several aspects which I try to 
> tidy up there. The DM1 session (and part of DM 2) of this interop will 
> show various presentation showing where we are in this questions.
> 
>       I ) Models "dissemination" , usage and suitability with the 
> user/developper/dataprovider needs. Are the model too complex ?
> 
> 
>      II ) Formats and vocabularies
>         Do we need utypes and ucds ? Is a model transportable in VOTABLE.
> IS JSON alternative or complementary to XML ?
> 
>      III )  UNits and Coordinate systems
>             Do we force dataproviders to use only one or do we allow 
> various systems by providing acccurate description using STC and a 
> (coming) Unit datamodel...
> 
> 
>       IV ) How are metadata related to data and Data access layer...
> 
> I will post now 4 emails with the best part of the discussion on these 
> subjects...
> 
> Cheers
> Fran?ois
> 
> 
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Arnold H. Rots                                Chandra X-ray Science Center
Smithsonian Astrophysical Observatory                tel:  +1 617 496 7701
60 Garden Street, MS 67                              fax:  +1 617 495 7356
Cambridge, MA 02138                             arots at head.cfa.harvard.edu
USA                                     http://hea-www.harvard.edu/~arots/
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