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.

Working papers

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

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

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

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

Maintenance of the list of UCD words Version 1.20 : IVOA Recommendation 28 May 2006

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