IVOA Data Model

! Work in progress : Site under re construction !!!

Here is a summary of the ongoing activities in the data modeling WG:

To come	Ongoing	RFC period	Recommended
	Spectrum1.2 updated 2011-March-19
			Spectrum1.1 rec 2011-Nov-20
	Characterisation v2.0
	Utypes May 2012
		PhotometryDataModel 1.0 Rfc 2012-May-17
	SedDM
			Simulation Data Model Rec 2012 May 03
			STC v1.33
			Characterisation 1.13
			SpectralLinesDM
			ObsDMCoreComponents Rec 2011-Oct-28
ObsProvenance
SourceDataModel

Here is a preliminary graph showing dependencies between data models used in the IVOA framework. This is a draft shown at the last Interop meeting in Napoli ( May 2011). (to be updated) The links between two boxes representing data models means "reuses some classes of"

This is a collaborative page of the IVOA data modelling standardization working group.

To join see our page on How to participate

Contents

- Introduction
- Involved People
WG Roadmap
- Meetings Presentations&Minutes
Latest Standards approved
Related Documents and links: former documents versions and attempts

Introduction

Definition: The role of the Data Modeling group is to provide a framework for the description of metadata attached to observed or simulated data.
The activity of the Data Model WG activity focuses on logical relationships between these metadata, examines how an astronomer wants to retrieve, process and interpret astronomical data, and provides an architecture to handle them. What is defined in this WG can then be re-used in the protocols defined by the DAL WG or in VO aware applications .

Work Packages

We currently have 5 different work packages, with one clearly identified as a transverse effort with the Theory IG : the Simulation Data Model

Work Package	Definition	Main page
STC	Space Time Coordinates	STC
Spectrum	Spectrum Data Model	Spectrum
Characterisation	Characterisation Metadata for Observations	CharacterisationDataModel
AMLine	Atomic and Molecular Line Data Model	SpectralLinesDM
Photometry	Photometry Data Model	PhotometryDataModel
Observation/Provenance	Observation process and instrumental Provenance	ObservationProvenanceDataModel
Observation Core Model	A simple Observation DM for general data retrieval on all kinds of archive	ObsDMCoreComponents
	on all kinds of archive
SimDB	Simulation Data Model	Simulation Data Model

Added to that, this group handles questions that are general for the IVOA and shared with other working groups.

Work Package	Definition	Main page	WG partners
Units	Units definitions and Syntax rules	UnitsDesc	VOtable,DAL
Utypes construction	Definition and syntax for Utypes to map a piece of metadata with its role in a Data model	Utypes	VOTable, DAL

Lists for discussion

General working-group discussion takes place here on the datamodel mailing list.
on going Utype discussion on utype list

Participants

Membership of this working group is informal as people and projects come and go. See above for information on "how to participate" to the working group.

Specifications

Latest Adopted standards for Data Modeling

ObsCore

Latest Documents (proposed standards and implementations)

Photometry proposed REC

Projects using data models

Virtual Observatory Projects working on Data models and their implementations should list themselves here. * to fill and update***

ObservatoireStrasbourg
- SAADA CharDM and ObsCore

CDS
1. Aladin portal
2. CAMEA, an interactive tool for Characterisation metadata publishing
Lerma- Paris
1. Aspid-SR CharDM

Meetings

Most of our face-to-face activity takes place during IVOA Interoperabiltiy Meetings. Follow the Data Model Page links to locate agendas, presentation slides, and action items.

Interop	Main page	Data Model page
Pune, India (27-29 Sept 2011)	InterOpOct2011	InterOpOct2011DataModel^?
Napoli, Italy (19-23 May 2010)	InterOpMay2010	InterOpMay2010DataModels^?
Strasbourg, France(19-23 May 2009)	InterOpMay2009	InterOpMay2010DataModels^?
Garching, Germany(19-23 Nov 2009)	InterOpMay2010	InterOpNov2009DataModels^?
Trieste, Italy (19-23 May 2008)	InterOpMay2008	InterOpMay2008DataModels
Cambridge, UK (27-28 Sep 2007)	InterOpSep2007	InterOpSep2007DataModel
Beijing, China (14-18 May 2007)	InterOpMay2007	InterOpMay2007DataModel
Moscow, Russia (18-21 Sep 2006)	InterOpSep2006	InterOpSep2006DM
Victoria, Canada (14-19 May 2006)	InterOpMay2006	InterOpMay2006DataModel
Madrid, Spain (6-7 Oct 2005)	InterOpOct2005	InterOpOct2005DataModel
Kyoto, Japan (16-20 May 2005)	InterOpMay2005	InterOpMay2005DataModel
Pune, India (27-29 Sept 2004)	InterOpSep2004	InterOpSep2004DataModel
Cambridge, Mass. USA (23-28 May 2004)	InterOpMay2004	InterOpMay2004DataModel
Strasbourg (16-17 Oct 2003)	InterOpOct2003	InterOpOct2003Registry
Cambridge, UK (12-16 May 2003)	InterOpMay2003	InterOpMay2003DataModel

Involved People

Name	Country	Organization	Role
Jonathan McDowell	USA	CfA, Boston
Francois Bonnarel	France	CDS Strasbourg
Igor Chilingarian	France	Paris Observatory
Marie Lise Dubernet	France	Paris Observatory
Mireille Louys	France	CDS/LSIIT Strasbourg	Chair
Gerard Lemson	Germany	MPI Garching
Alberto Micol	Spain	European Space Agency / ESAC
Nicolas Moreau	France	Paris Observatory
Pedro Osuna	Spain	European Space Agency / ESAC
ArnoldRots	USA	CfA, Boston
Anita Richards	UK	Jodrell Bank	Vice Chair
Jesus Salgado	Spain	European Space Agency / ESAC
J.D. Santander-Vela	Germany	ESO / Archive dpt
Arancha Delgado ^?	Germany	ESO / Archive dpt
Petr Skoda	Czech Rep.	Astron Inst. of Acad. Sciences

Please put your name here if you wish ...

WG Roadmap

Roadmap for 2007-2008
Report to IVOA Exec FM9, Jan 2004

Meetings Presentations&Minutes

Check the above Interop pages for most recent meetings
Cambridge, MA, USA, May 24-28, 2004: DM sessions presentations & details
ESO/Garching, Jan 2004: Data Model Technical Meeting 4 Draft 0.1 of Observation model
Baltimore, Dec 2003: Data Model Technical Meeting 3 (no minutes yet; see draft 0.2 of Quantity)
Strasbourg 2003 Oct 14/15: Data Model WG Sessions presentations & details
Cambridge 2003 May 13: Data Model WG Sessions presentations & details
ESO/Garching on Jan. 23/24, 2003: Data Model Sessions minutes (WG creation and planning)
Cambridge MA, Oct 2002: Data Model Technical Meeting 1 presentations & minutes

Latest Standards approved

STC

Lastest version

Spectrum Data Model

Spectrum 1.1

Characterisation DM