IVOA Technical Coordination Group

This Committee is formed by the Chairs of the Working and Interest Groups and includes the IVOA chairs and vice-chairs.

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TCG Charter

The Charter is detailed here

Members

	Chair	Vice-Chair
TCG	Patrick Dowler	Janet Evans
Working Groups
Applications	Tom Donaldson	Raffaele D'Abrusco
Data Access Layer	Marco Molinaro	James Dempsey
Data Model	Laurent Michel	Jesus Salgado
Grid and Web Sevices	Giuliano Taffoni	Christine Banek
Registry	Theresa Dower	Pierre Le Sidaner
Semantics	Markus Demleitner	Carlo Maria Zwoelf
Interest Groups
Data Curation & Preservation	André Schaaff	Tim Jenness
Education	Chenzhou Cui	Hendrik Heinl
Knowledge Discovery in Databases	Kai Lars Polsterer	Matthew Graham
Operations	Mark Taylor	Steve Groom
Radio Astronomy	Mark Lacy	Francois Bonnarel
Solar System	Baptiste Cecconi	Steven Joy
Theory	Carlos Rodrigo	Gerard Lemson
Time Domain	Ada Nebot	Dave Morris
IVOA Committees
Exec	Chenzhou Cui	Bruce Berriman
Standard and Processes	Christophe Arviset
Science Priorities	Bruno Merin
Inactive Working Groups
VOTable	Assigned to Apps WG
VO Query Language	Merged with DAL in May 2010
VOEvent	Transformed into Time Domain IG in Oct 2012

IVOA Architecture

The current version of the IVOA Architecture Note (23 Nov 2010) can be found here

• Source file for Level 0, 1, 2 and for each individual standard: VOArchitecture-IVOAStandards_20160506.pptx

Note: Up-to-date architecture diagrams can be generated from with the ivoatex package. The complete inout filr with all RECs and some pre-RECs can be found in the IVOA Architecture document source: https://github.com/ivoa-std/architecture

On-going Recommendations

Standard Title	Short Name	RFC Page	RFC period
			TCG Review	Rec to Exec
Measurements	PR-Meas-1.0	MeasRFC	2019-09-13 to 2019-10-21
Coordinates	PR-Coords-1.0	CoordsRFC	2019-09-13 to 2019-10-21
SSLDM	PR-SSLDM-2.0	SSLDM	2019-10-02 to 2019-11-13
ObsLocTAP	PR-ObsLocTAP-1.0	ObsLocTAP10RFC	2020-06-26 to 2020-09-01

For WG chairs convenience,

• Please find here a Template RFC page that can be used to create new RFC pages for a specific standard.
• List of steps for the Standard Promotion Process
• See here the Current IVOA Standards Status

Current Errata

Title	Errata Page	TCG Review
Hanging if clause (Sect.4.3 text amendment)	DataLink-1.0 Erratum 2	approved 2020-06-11
Missing text (Sect.4.4 text amendment)	DataLink-1.0 Erratum 3	approved 2020-06-11
Self-Describing Service example fix (Sect.4.6)	DataLink-1.0 Erratum 4	approved 2020-06-11
Coordinate system argument as a string literal	ADQL-2.0 Erratum 3	approved 2020-06-11

Status column definitions,

• WG means dicussions are underway
• TCG means that TCG members should review and be prepared to vote at the next TCG meeting (telecon or face-to-face)
• PASS/Date is when TCG reviewed and approved the errata
• Note: Row will be removed in table by TCG VCh after Errata has made it to Doc&Stds pages - reviewed periodically during TCG mtg prep

IVOA Technical Assessment and Roadmap Documents

• TCG Active Standards Efforts - May 2019
• 2020A Roadmap - development activities by the various IVOA working and interest groups in 2020 between the May 2020 and Oct 2020 Interops.
• Previous Years Roadmaps -
• 2019B Roadmap,2019A Roadmap,2018B, 2018A, 2017B, 2017A, 2016B, 2016A, 2015B, 2015A, 2014B, 2014A, 2013B, 2013A, 2012, 2010, 2009, 2008, 2007, 2006, 2005

Standards Process Review

• Discussion page for Standards Process Review

Meetings / Teleconf / Discussions / Coordination

• 2020 - Telecon 2020-06-11, Telecon 2020-05-14, ProgramPrepVirtual, Telecon 2020-02-11
• 2019 - F2F 2019-10-09, ProgramPrepGroningen, Telecon 2019-08-22, Telecon 2019-07-16, F2F 2019-05-12, Telecon 2019-04-16, Telecon 2019-02-05, ProgramPrepParis
• 2018 - ProgramPrepCollegePark, F2F 2018-11-08, Telecon 2018-09-18, Telecon 2018-07-05, F2F 2018-05-27, Telecon 2018-02-22
• 2017 - Telecon 2017-05-05
• 2016 - Telecon 2016-02-08 F2F Meeting 2016-05-8
• 2015 - Telecon 2015-09-14 Telecon 05/Feb/2015, Telecon 12/May/2015, Meeting 14/Jun/2015
• 2014 - Telecon 22/Apr/2014, Meeting 18/May/2014, Telecon 30/Sep/2014
• 2013 - Telecon 26/Feb/2013, Meeting 12/May/2013, Telecon 10/Sep/2013, Telecon 17/Dec/2013
• 2012 - Telecon 28/Feb/2012, Telecon 12/Apr/2012, Meeting 20/May/2012, Telecon 06/Sep/2012, Meeting 21/Oct/2012, Telecon 12/Dec/2012
• 2011 - TCG Telecon 2/March/2011, TCG Telecon 4/May/2011, TCG Meeting 15/May/2011, TCG Telecon 25/Aug/2011, TCG Meeting 16/Oct/2011
• 2010 - TCG Meeting 14-15/May/2010, TCG Meeting 6/Dec/2010
• 2009 - TCG Telecon 12/May/2009, TCG Telecon 16/Sep/2009, IVOA WD Numbering Nomenclature discussion, Jan/2009
• 2008 - TCG Telecon 27/Feb/2008, TCG Telecon 4/Sep/2008
• 2007 - TCG Telecon 10/Sep/2007

Past Recommendations

• 2020 - ProvenanceDM-1.0
• 2019 - MOC-1.1 RegTAP-1.1 TAP-1.1 UCDListMaintenance-2.0 VOTable-1.4
• 2018 - VO-DML-1.0, RegistryInterface-1.1, VOResource-1.1, VOSpace-2.1, UCD1+-1.3
• 2017 - VTP-2.0, DALI-1.1, HiPS-1.0, SODA-1.0, SimpleDALRegExt-1.1, SSO-2.0, VOSI-1.1, ObsCore-1.1, DocStd-2.0, SimDAL-1.0
• 2016 - UWS-1.1, IVOAIdentifiers-2.0
• 2015 - DataLink 1.0, SIA-2.0
• 2014 - VOUnits 1.0, PDL 1.0, MOC 1.0, RegTAP 1.0
• 2013 - VOSpace 2.0, VOTable 1.3, SimpleDALRegExt 1.0, PhotDM 1.0, DALI 1.0
• 2012 - SAMP 1.3, StandardsRegExt 1.0, SimDM 1.0, TAPRegExt 1.0
• 2011 - ObsCoreDM 1.0, VOSI 1.0, VOEvent 2.0, SSAP 1.1 and SpectrumDM 1.1
• 2010 - WS BP 1.0, SAMP 1.2, SSLDM 1.0, SLAP 1.0, UWS 1.0, VODataService 1.1, IVOA Std Doc 1.2, TAP v1.0
• 2009 - CDP, VOTable 1.2, SIAP, Vocabularies, VOSpace 1.15, Registry Interface, SAMP
• 2008 - ADQL 2.0
• 2007 - SCS, Spectrum DM, STC, CharDM, SSAP, SSO, VOSpace, VOResource