IVOA Unified Content Descriptors

The IVOA UCD Working Group has been supersed by the Semantics Working Group, effective from June 20th, 2006. This page has been locked for edits.

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

Charter for the Semantics WG (approved by EXEC on May 17 2006):

• Charter-Semantics.pdf

The IVOA Standard Vocabulary (Processes, Object types, Instrumentation,..) Version 0.8 (20060505) :

• VO-standard-vocabulary_8.pdf

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 1.20 : IVOA Recommendation 28 May 2006

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

Old documents

• VO-standard-vocabulary Vers. 0.5 of 20051220 (.pdf)
• UCDmaintenanceRFC
• 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
Roy Williams	Caltech, US
Pedro Osuna	ESA, E
Norman Gray	Starlink UK
Nausicaa Delmotte	ESO, D	ndelmott@eso.org
Jonathan McDowell	CfA, US
Guy Rixon	Cambridge, UK	gtr@ast.cam.ac.uk
François Ochsenbein	CDS, F
Bob Mann	ROE UK
Andrea Preite Martinez	INAF, I

Links

• The web-based form for requesting a modification (RFM) of UCD words can be found at: http://cdsweb.u-strasbg.fr/UCD/cgi-bin/comment/ucdComments

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

• Tools to find and build UCDs: http://cdsweb.u-strasbg.fr/UCD/cgi-bin/descr2ucd

UCD Sessions at Interop Meetings

Where & When	UCD Session	Plenary & More
Victoria - Canada, May 2006	InterOpMay2006UCD	plenary
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)
May-2006	UCD1+ Maintenance: Recomm	done (28May2006)
End-2006	Ontologies-TN
End-2006	Standard Vocabulary-TN

Mailing-lists

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