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IVOA Technical Coordination Group

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

TCG Charter

The Charter is detailed here


  Chair Vice-Chair
TCG Patrick Dowler Janet Evans
Working Groups
Applications Tom Donaldson Raffaele D'Absrusco
Data Access Layer Marco Molinaro James Dempsey
Data Model Mark Cresitello-Dittmar Laurent Michel
Grid and Web Sevices Brian Major Giuliano Taffoni
Registry Theresa Dower Pierre Le Sidaner
Semantics Mireille Louys Markus Demleitner
Interest Groups
Data Curation & Preservation Andre Schaaff Tim Jenness
Education Chenzhou Cui Hendrik Heinl
Knowledge Discovery in Databases Kai Lars Polsterer Matthew Graham
Operations Tom McGlynn Mark Taylor
Solar System Baptiste Cecconi Steve Joy
Theory Carlos Rodrigo  
Time Domain Ada Nebot Dave Morris
IVOA Committees
Exec Mark Allen Chenzhou Cui
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

Note: Up-to-date architecture diagrams can be generated from within the ivoatex package on volute. Thesewill be moved to be included in the source code of the architecture note and re-rendered versioins made available for use in documents, presentations, etc.

On-going Recommendations

Standard Title Short Name RFC Page RFC period
      TCG Review Exec Review
Table Access Protocol PR-TAP-1.1 RFC 2018-04-23 to 2019-06-02  
Maintenance of the list of UCD words PR-UCDListMaintenance-2.0 RFC 2018-09-12 to 2018-10-12  
Provenance Data Model PR-ProvanenceDM-1.0 RFC 2018-10-22 to 2018-11-19  

For WG chairs convenience,

Current Errata

Standard Erratum Page Status
ObsCore-1.1 PASS/May12 (some rewording - ML)
ObsCore-1.1 PASS/Apr16
SODA-1.0 PASS/May12
VOResource-1.1 PASS/May12 (pending A&A session - TD)
RegTAP-1.0 PASS/May12
STC-1.33 PASS/Apr16
STC-1.33 PASS/Apr16
VOSI-1.1 PASS/Apr16
VOSI-1.1 PASS/Apr16

Status: 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).

IVOA Technical Assessment and Roadmap Documents

Standards Process Review

Meetings / Teleconf / Discussions / Coordination

Past Recommendations

IVOASTANDARD Proposed Recommendation: Request for Comments

Feel free to include here an introductory paragraph describing the IVOASTANDARD being addressed here

Latest version of IVOASTANDARD can be found at:

  • URL link to the document

Reference Interoperable Implementations

(Indicate here the links to at least two Reference Interoperable Implementations)

Implementations Validators

(If any, indicate here the links to Implementations Validators)

Comments from the IVOA Community during RFC/TCG review period: RFC_start_date - RFC_end_date

The comments from the TCG members during the RFC/TCG review should be included in the next section.

In order to add a comment to the document, please edit this page and add your comment to the list below in the format used for the example (include your Wiki Name so that authors can contact you for further information). When the author(s) of the document have considered the comment, they will provide a response after the comment.

Additional discussion about any of the comments or responses can be conducted on the WG mailing list. However, please be sure to enter your initial comments here for full consideration in any future revisions of this document

Comments from TCG member during the RFC/TCG Review Period: TCG_start_date - TCG_end_date

WG chairs or vice chairs must read the Document, provide comments if any (including on topics not directly linked to the Group matters) or indicate that they have no comment.

IG chairs or vice chairs are also encouraged to do the same, althought their inputs are not compulsory.

TCG Chair & Vice Chair

Applications Working Group

Data Access Layer Working Group

Data Model Working Group

Grid & Web Services Working Group

Registry Working Group

Semantics Working Group

Data Curation & Preservation Interest Group

Education Interest Group

Knowledge Discovery in Databases Interest Group

Theory Interest Group

Time Domain Interest Group


Standards and Processes Committee

TCG Vote : Vote_start_date - Vote_end_date

If you have minor comments (typos) on the last version of the document please indicate it in the Comments column of the table and post them in the TCG comments section above with the date.

Group Yes No Abstain Comments

Topic attachments
I Attachment Action Size Date Who Comment
Texttxt TCG-2016-02-08.txt manage 3.0 K 2016-02-24 - 17:52 PatrickDowler Draft minutes from TCG Telecon 2016-02-08
PDFpdf TCG_ActiveStds.pdf manage 59.0 K 2019-05-15 - 10:17 JanetEvans  
Unknown file formatxlsx TCG_ActiveStds.xlsx manage 13.1 K 2019-05-15 - 10:17 JanetEvans  
PDFpdf VOArchitecture-IVOAStandards_20160506.pdf manage 3843.5 K 2016-09-20 - 07:02 MatthewGraham  
Unknown file formatpptx VOArchitecture-IVOAStandards_20160506.pptx manage 439.9 K 2016-09-20 - 07:04 MatthewGraham  
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Topic revision: r324 - 2019-05-15 - JanetEvans
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