IVOA Unified Content Descriptors

If you are interested in actively participating in the IVOA workgroup about semantics, please contact Andrea Preite Martinez.

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Working papers

Latest documents

The IVOA Standard Vocabulary Version 0.41 (20051202) :

• VO-standard-vocabulary_4.htm

An IVOA Standard for Unified Content Descriptors Version 1.10 : IVOA Recommendation 19 August 2005

• http://www.ivoa.net/Documents/latest/UCD.html

The UCD1+ controlled vocabulary Version 1.11 : IVOA Recommendation 31 December 2005

• http://www.ivoa.net/Documents/latest/UCDlist.html

Maintenance of the list of UCD words Version 1.00 : IVOA Working Draft 7 November 2005

• http://www.ivoa.net/Documents/latest/UCDlistMaintenance.html

When the RFC period for the above document will be open, the RFC page will be at:

• http://www.ivoa.net/twiki/bin/view/IVOA/UCDmaintenanceRFC

Old documents

• http://www.ivoa.net/twiki/bin/view/IVOA/UCDListRFC
• Electromagnetic spectrum division v0.3: .html, .pdf
• Proposed revision (2003): UCD-1.9.9 (.pdf, .doc) and UCD-1.9.9b (.pdf, .doc)

Members

Name	Institute
Sébastien Derrière	CDS, F
Norman Gray	Starlink UK
Marco Leoni	ESO, D
Bob Mann	ROE UK
Jonathan McDowell	CfA, US
François Ochsenbein	CDS, F
Pedro Osuna	ESA, E
Andrea Preite Martinez	CDS, F
Guy Rixon	Cambridge, UK	gtr@ast.cam.ac.uk
Roy Williams	Caltech, US

Links

• UCD page at CDS: http://cdsweb.u-strasbg.fr/UCD/

UCD Sessions at Interop Meetings

Where & When	UCD Session	Plenary & More
Madrid - Spain, Oct 2005	InterOpOct2005UCD	plenary
Kyoto - Japan, May 2005	InterOpMay2005UCD	plenary
Pune - India, September 2004	no formal UCD session	plenary
Cambridge, Mass. - USA, May 2004	InterOpMay2004UCD	plenary
Strasbourg, October 2003	InterOpOct2003UCD	ppt
Cambridge - UK, May 2003	InterOpMay2003UCD	.ppt, .pdf

WG Roadmap

Date	Event	status
Oct-2004	UCD1+ to PR (RFC)	done
May-2005	UCD-Tools	done
Jun-2005	Create Sci- and Tech-Boards	done
Jul-2005	UCD1+ word-list to PR(RFC)	done (RFC after holidays)
Jul-2005	UCD1+: PR to Recomm	done (in Aug, minor editing needed)
Oct-2005	UCD1+ word-list: PR to Recomm	in progress
Oct-2005	From UCDs to Semantics	proposed in Kyoto
Nov-2005	UCD1+ Words Maintenance	Working Draft
Dec-2005	UCD1+ word-list: Recomm	done (31Dec2005)
2006	Ontologies?

Mailing-lists

• General working-group discussion archive
• UCD Scientific Board archive
• UCD Technical Board archive.