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.

TCG Charter & History

The Charter is detailed here

The Chair/V Chair History is detailed here

Working Groups
	Chair	Vice-Chair
TCG	Marco Molinaro	Tom Donaldson
Applications	Adrian Damian	Brigitta Sipőcz
Data Access Layer	Gregory Mantelet	Joshua Fraustro
Data Model	Mark Cresitello-Dittmar	MathieuServillat
Distributed Services & Protocols	Jesus Salgado	Sara Bertocco
Registry	Renaud Savalle	Tess Jaffe
Semantics	Baptiste Cecconi	Sebastien Derriere
Interest Groups
Data Curation & Preservation	Gilles Landais	Gus Muench
Education	Shanshan Li	Jeremy McCormick
High Energy	Bruno Khelifi	Janet Evans
Knowledge Discovery	Yihan Tao	André Schaaff
Operations	Steve Groom	Tamara Civera
Radio Astronomy	Mark Kettenis	OPEN
Solar System	Stephane Erard	Markus Demleitner
Time Domain	Judith Racusin	Pierre Fernique
IVOA Committees
Exec	JJ Kavelaars	Mark Allen
Science Priorities	Francesca Civano	Vandana Desai
Standard and Processes	Patrick Dowler
IVOA IAU Liaison Committee	Bruce Berriman
Standby/Merged/Re-scoped Groups
Theory	In "standby" phase, group without formal coordination - email: theory@ivoa.net

VOTable	Assigned to Apps WG
VO Query Language	Merged with DAL in May 2010
VOEvent	Transformed into Time Domain IG in Oct 2012

The current version of the IVOA Architecture Note (01 Nov 2021) can be found here

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

Standard Title	Short Name	RFC Page	RFC period
Standard Title	Short Name	RFC Page	TCG Review	Rec to Exec
VOEvent	VOEvent-2.1	VOEventV21RFC	2024-09-15 - 2024-10-31
StandardsRegExt	StandardsRegExt-1.1	StandardsRegExt11RFC	2025-02-15 - 2025-03-30
MANGO	MANGO-1.0	Mango10RFC	2025-06-30 - 2025-08-02

Simple Spectral Lines DM	SSLDM-2.0	SSLDM	frozen

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

Title	Errata Page	TCG Review

Title	Note Page	TCG Review

ID	action	term	label	VEP text	status
VEP-016	Addition	voresource/date_role#ExportRequested	Export Requested	VEP-016.txt	ready for vote

Calibration levels	full vocabulary			Preliminary vocabulary & terms	WG
Object Types	full vocabulary			Preliminary vocabulary & terms	WG

VEP-009	Modification	datalink/core#progenitor	Progenitor	VEP-009.txt	frozen

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

2025A Roadmap - development activities by the various IVOA Working and Interest Groups between the June and November 2025 Interops.
All previous TCG Roadmaps can be found here.
Protocol Transitioning Tiger Team (P3T) - Initiated Jan 2024

Topic attachments
I	Attachment	History	Action	Size	Date	Who	Comment
pdf	Arch-2021-09-14.pdf	r1	manage	813.1 K	2021-09-16 - 21:26	PatrickDowler
pdf	Recommendation-RegTAP-1.2.pdf	r1	manage	62.3 K	2024-10-02 - 06:57	MarcoMolinaro	RegTAP-1.2 approval summary (2024-10-02)
pdf	Recommendation-VOResource-1.2.pdf	r1	manage	59.5 K	2025-04-29 - 12:32	MarcoMolinaro	VOResource-1.2 approval summary (2025-04-16)
pdf	TCG_ActiveStds.pdf	r2 r1	manage	63.8 K	2019-05-30 - 16:17	JanetEvans
xlsx	TCG_ActiveStds.xlsx	r2 r1	manage	13.1 K	2019-05-30 - 16:17	JanetEvans
pdf	VOArchitecture-IVOAStandards_20160506.pdf	r1	manage	3843.5 K	2016-09-20 - 07:02	MatthewGraham
pptx	VOArchitecture-IVOAStandards_20160506.pptx	r1	manage	439.9 K	2016-09-20 - 07:04	MatthewGraham