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Characterisation DM: Complements and new features. Observation quality and variability - complex datasets
Version 1.0

IVOA Working Draft 29 October 2012

Interest/Working Group:
Francois Bonnarel, Igor Chilingarian, Mireille Louys, Juande Santander Vela, Jesus Salgado
Francois Bonnarel


The Astronomical Dataset Characterization Data Model (CharDM) defines and organizes all the metadata necessary to describe how a dataset occupies multidimensional physical space, quantitatively and, where relevant, qualita- tively, in such a way that they become interoperable. We present here a new version of the characterisation data model, with description of data interpretation aids from variablity of observations, together with new representations for polarisation and redshift axes. Complex datasets are also tackled.

Status of this document

This is an IVOA Working Draft for review by IVOA members and other interested parties.
It is a draft document and may be updated, replaced, or obsoleted by other documents at any time.It is inappropriate to use IVOA Working Drafts as reference materials or to cite them as other than "work in progress".

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