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Data Model for Astronomical DataSet Characterisation
Version 1.00

IVOA Working Draft 20 October 2006

Interest/Working Group:
http://www.ivoa.net/twiki/bin/view/IVOA/IvoaDataModel
Author(s):
IVOA data Model Working Group
Editor(s):
Jonathan McDowell, François Bonnarel, Igor Chilingarian,Mireille Louys, Alberto Micol, Anita Richards.

Abstract

This document defines the high level metadata necessary to describe the physical parameter space of observed or simulated astronomical data sets, such as 2D-images, data cubes, X-ray event lists, IFU data, etc.. The Characterisation data model is an abstraction which can be used to derive a structured description of any relevant data and thus to facilitate its discovery and scientific interpretation. The model aims at facilitating the manipulation of heterogeneous data in any VO framework or portal. A VO Characterisation instance can include descriptions of the data axes, the range of coordinates covered by the data, and details of the data sampling and resolution on each axis. These descriptions should be in terms of physical variables, independent of instrumental signatures as far as possible.

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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