Notes on DM2 session, Wednesday 27 May, 11:00-12:30 / M.Louys
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*F. Bonnarel 
Characterisation Update : 
Sensitivity/ variability: example for a Map description in xml.
Exemple for the characterisation of a multi-segment image.

*I. Chilingarian: Sensitivity/variability within Characterisation DM level 4

A way to provide a pointer to sensitivity maps in the Characterisation DM, and the description of the necessary parameters to retrieve the information from distant servers.

Q&comments :
Alberto Micol: pb for DM uptake is that the archives do not support the metadata. 


*F. Bonnarel: 
Utypes for characterisation 2 ways to shorten utypes.
Observation/Provenance  Data model exemples.


Questions: 
G.Lemson: Long utypes are interpretable by machines and can be derived via the automatic process described in DM1. 
D.Tody: abbreviation can be built up with specific context (applications) and manipulate internaly.
?:Display of quantities in applications can use aliases (labels on axes) 

Qu. on Provenance: instrument configuration should not be too regime oriented.
discuss a general profile for all regimes with a small focused group: (Andreas Wicenec, D. Tody, Juan Santander, F.Bonnarel, ...)and try it out on main data collections. 

Actions: 
F.B, and ML UML Observation DM and XML schema to be circulated by end of July

*J. Salgado: Photometry data model
Sketch out of classes for photometry interpretation on an observation. 
use cases:  How can we retrieve the filter response attached to an observation and compute the photometry .
M.L: DM overlap: Design for a filter profile, that can be re-used in other data models, like Observation/Provenance. 
Comments : what is the proper scope for this effort?
A.Wicenec, F.Genova, A. Rots,...: We should gather photometrist people and get more input for scientific uses-cases.

*J. Salgado: Simple spectral line model
Draft appeared within the WG. Comments and suggestions required.
RFC to start just after the interop.
Q: How does it fit with last AMLDm version (2008)? 
R: Core classes of the model are shared between the 2 models. 
SSLDm covers all necessary classes for the SLAP protocol.
ML: 2 implementation references needed for REC.
JS: SLAP protocol and other existing implementations 
Ray Plante: it is worth to have a slight update on former SLAP implementation to be compatible with the DM.
???

*ML. Dubernet: VADAMS
The VADAMS EU infrastructure project has been founded . 
Start july 2009. Adverstise for a 3- years engineer position.
Xsams is an evoluted version of AMLDM XML schema, which includes more sources (solids...), encompases several domains ( atmosphere, chemistry, ..)and has a finer description on the various physical processes.
Will be a protototypte as a start for the project.
F.Genova: Is there a plan to insure backward compatibility with the existing model built up in the IVOA?
MLD: Interoperable services are part of the project. Partners from Astrogrid are members of the project.