Observation – Provenance – Characterisation DM


François Bonnarel ( coordinator) ,

Mireille Louys, Alberto Micol, ...( please add your name)

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while the archive with the mail messages can be found at:


Possible areas of work

  • Work on the Observation, Provenance and Characterisation Data Models

Current progress on Data models

Characterization Data Model Uptake

from Oct 2008 to March 2009

  • The Charac DM has been used in various advanced use-cases in order to describe complex data and experiment the fine grain detailled levels of the
    model, especialy the Error and Variability maps.
  • Various XML instance documents have been sketched out for specific use-cases:
    • Polarisation data
    • Multiple CCD observations
Observation Data Model
  • The Observation container has been designed including Provenance and Characterization Packages.

We developed various XML serialisation examples of Provenance : for a stacked image (association), for a an observation with instrumental Provenance metadata: Telescope and Filter description.

All these exemples results of the Observation / Characterization task group initiated one year ago and have been presented and discussed in Baltimorelast fall .

More recently an example of error maps and resolution map for SLOAN spectra has been built. In that case solutions to provide pointers inside a multiextension dataset containing science data as well as ancillary data is proposed. Work is going on with Igor Chilingarian.

  • Current discussions about simplification of Data models are going on (with Alberto Micol and Fabien Chereau).
    We plan to slightly modify the Characterisation DM XML schema and to propose a new list for UTYPES .
-- MireilleLouys - 13 Mar 2009
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Topic revision: r3 - 24 Mar 2009 - MireilleLouys
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