Reference:
Version: 0.1
Author: Mireille Louys- F. Bonnarel
Date: July 10, 2009

Observation DataModel: Core for data query

Prototype


Observation DataModel: Core for data query

Preliminary specification

Overview of the application

This is a very preliminary verstion for the Core Obs Model.

Provenance Coordsystem AstroCoords SpaceTimeCoordinates Observation Photometry CharacterisationDM DatasetID Curation Target Spectrum

Class diagram : Overview of packages used

This is a general View of the Observation DM.
The Core Obs model will use only a subset of the classes required for the
identified Use-cases, but possibly borrow classes from existing packages like
Characterisation or Spectrum( in white).
Colored packages are currently defined in the DM WG and will be developped
in coordination with this core model effort as well.

FITS_WCS Protocol Filter Provenance Mapping Access CharacterisationAxis SpatialAxis SpectralAxis TimeAxis Characterisation Coverage Resolution Sampling Location Bounds Support Variability Sensitivity ObservableAxis Accuracy Error ErrorBounds ErrorRefVal ErrorMap ResBounds SamplingBounds SamplingRefval ResRefVal SamplingVariability CharacterisationDM DatasetID Curation Target Spectrum Observation

Class diagram : ObservationDM (1)

Class diagram for the Core Observation Model . In the Characterisation package only the colored classes will be used .

Description of the SSA protocol:

http://www.ivoa.net/Documents/REC/DAL/SSA-20080201.html

Summary

It contains the following packages: It contains the following classes:

Use cases

Description

The defined use cases are: