IVOA Semantics Working Group
The Semantics Working Group
Charter for the Semantics WG, approved by EXEC on 17 May 2006:
Charter-Semantics.pdf
The Semantics Working Group superseded the
UCD Working Group, effective from June 20th, 2006.
Group lead and advising comitee
Documents
UCD list update
Procedure to ask for extension and /or modification of the UCD list
The procedure complies with the following basic principles:
- Any member of the IVOA community can submit at any time a request for modification (RFM) of the controlled list of UCD words;
- A globally editable page is the interface between the community and the Scientific Board in charge of discussing the RFM;
- The author of a RFM should get an answer within 6 weeks;
- At regular intervals (synchronized with IVOA Interoperability meetings) the approved modifications are integrated in a new version of the IVOA UCD1+ Common Vocabulary.
Current page for request for modification:
UCDListv1_42017June2018FebRFM
Summary of discussion for the RFM period
Discussion page
http://wiki.ivoa.net/twiki/bin/view/IVOA/RFMforUCD
Previous RFM pages :
http://wiki.ivoa.net/twiki/bin/view/IVOA/UCDList1dot42017June2018FebRFM
IVOA Recommendations
Current work
2018- March Publishing and disseminating the IVOA defined vocabularies
VocabularyTestPage is a page proposed for a centralised page where all vocabularies defined in the VO could be published and downloaded.
This page is submitted for approval to the exec commitee, with a short charter discussed at last IVOA semantics sessions and on the semantics mailing list .
2018- February / New UCD List v 1.3
Elaboration of new UCD keywords for planetary metadata and radio data. This effort is described on the discussion page PlanetaryUCD .
This has generated a loop for revision for the UCD list of terms , now in the final step of Recommendation.
See http://wiki.ivoa.net/twiki/bin/view/IVOA/UCDList2017RFC for the request for comments for http://www.ivoa.net/documents/UCD1+/20170831/index.html.
2017- Oct / Update of the UCD Maintenance Standard
This work has been initiated at the Shanghai Interop, May 2017.
An IVOA Note has been issued to stabilize the maintenance process
Note Version 2.0, 6 June 2017 Note Version 2.0, 6 June 2017 in track change mode from V1.20
This Note is turned to a Working draft proposing the Maintenance Process as an IVOA standard, in coordination with Standards & Process WG.
WorkingDraft 2.0, 19 October 2017 in track change mode from V1.20
Unique identifiers and description for facilities and instruments in astronomy and planetary science (started 2014)
Unified names and identifiers for astronomical Facilities, Telescopes and Instruments: See Unified Facilities Description at
UniFacil (on going work).
TelescopeInstruments Nomenclature Meetings:
@ the Lisa conference in SXB -2017-June 3-6
Meeting in Strasbourg
@CDS - 2018-Feb-21-23
SxbNomenTIMeeting20180221-23
Former work
Units specification in the IVOA
VOUnits: This specifies how to express unit strings in VO documents, APis, protocols and interfaces.
- The VOUnits document is now an IVOA REC. The VOUnitsRFC and DiscussionOnVOUnits pages still exist, but should not now be added to.
- There are no immediate plans for further work on the standard, however there is a small collection of issues and suggestions at VOUnitsNext
Vocabularies in the IVOA
Documents, releases and drafts are in the
VocabulariesWorkingArea
Keywords
Astronomical Keywords in the era of the Virtual Observatory, IVOA Note
AstroKeysTN-20070425.pdf
Ontologies
Ontology of Astronomical Object Types
text:
WD_2007-02-19.pdf OWL file (2008MAY16):
ObjectTypes_0.99r.owl
SKOS to OWL script. Basic, but functioning
skosToOwl.xsl:
Former work in the Semantics Group (2003-2014)
UCDandSemanticsFormerWork
Mailing-lists
- General working-group discussion archive. See the UCD archive for discussion prior to June 20th, 2006.
- UCD Scientific Board archive
- UCD Technical Board archive.