IVOA Executive Committee Meeting (FM19)

Weds May 17 2006 @ 12.30-14.30 Local Time (Victoria, Canada)

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Logistics

Agenda

1. Roll Call and Agenda
2. Minutes of TM18
3. Review of Actions
4. Participation of Brazilian VO (continued)
5. Review the proposed charter of the Semantics WG
6. Approval of new IVOA Recommendation(s)
7. IAU in Prague : status report
8. IVOA demonstration stand during the IAU GA in Prague
9. Autumn Interoperability meeting in Moscow
10. AOB
    • Summary of this meeting
    • Date and Venue of the next exec meeting (telecon ?)
11. Summary of Actions

Reports from the Projects

ArVO

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AstroGrid

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China-VO

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CVO

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DRACO Italy

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Euro-VO

France VO

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GAVO

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HVO

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Japan-VO

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Korean VO

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NVO

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RVO

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SVO

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VO-India

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Reports from WGs

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Grid and Web Services Working Group

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Semantics/UCD WG

Report of chairman of the Semantics/UCD WG

The following is the list of actions decided in the last Interop meeting (Madrid), with the present status, and of other activities of the WG:

• At the end of 2005 the list of UCD-words was approved by the IVOA EXEC and became an IVOA Recommendation: ?The UCD1+ controlled vocabulary. Version 1.11, 31 December 2005?

• On the same time the WG defined and discussed on a possible standard procedure to revise or update the list of UCD-words. First an internal Technical Note was written, then a Working Draft (?Maintenance of the list of UCD words Version 1.00?). In mid-March I decided to move the WD document to the level of Proposed Recommendation, opening a RFC to the Interop community.

• The RFC period ended on April 12 with 4 comments, all accepted. The PR document has been revised accordingly (version 1.2 of 2006-04-21), and sent to the the chair of the IVOA Technical Coordination Group.

• A chart for the new UCD/Semantics WG was presented to the IVOA EXEC in January 2006 (this text can be found in the ?Latest Documents? section of the UCD-WG web page at http://www.ivoa.net/twiki/bin/view/IVOA/IvoaUCD )

• Work on a Standard Vocabulary for the VO started at the beginning of 2006. A first internal note was written and posted on the UCD-WG page. First results will be presented at the InterOpMay2006 meeting.

• UCDs were intensively used in two data centers (CDS/Vizier, HEASARCH). At least these two examples of actual use of UCDs will be discussed at the InterOpMay2006 meeting.

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Data Models WG

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Data Access Layer WG

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Registry WG

The major work of this group has taken place within the tiger team set up at Kyoto to develop a data model for the Registry metadata. This group has had numerous telecons resulting in proposals to put to the Victoria meeting, hopefully leading to a V1.0 standard by end of June. These proposals are listed at:

• http://www.ivoa.net/twiki/bin/view/IVOA/RegDMServices
• http://www.ivoa.net/twiki/bin/view/IVOA/RegDMApplications

together with the registry interface specification:

• http://www.ivoa.net/twiki/bin/view/IVOA/RegistryInterface

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Document Standards WG -

• this group is no longer active

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VOEvent WG

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VOTable WG

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VOQL WG

1) General

• The working drafts of ADQL and Skynode interface are still under preparation. The due date was Nov 15 in the last year. We needed more time to generalize and finalize the documents. We would like to finish them in June(?).

• The updated ADQL schema will be preseneted at the Victria meeting. Some modification is made for simplifying the strucure and for fixing some minor problem.

• The ADQL-Light, which conforms to the ADQL core specification, is under prepartion and will be presented at the Victria meeting.

• Standardization of the content of a returned VOTable is under preparation and will be presented at the Victria meeting.

• We would like to finalize how to describe the specification of the xmatch functionality on the Victria meeting. Which algorithm should be mandatory for the cross-match skynode ?

2) JVO

• SkyNode toolkit has been released at the following URL: http://jvo.nao.ac.jp/download/skynode-toolkit/ JVO has released three versions after the last IVOA meeting. New version will be released before the Victria meeting.
• The degree of the conformance to the standard SQL is beeing investigated for several major DBMSs (Oracle, PostgreSQL, MySQL, SQLServer, DB2...). It is also investigated that how the object data types are treated on those DBMS.

3) NVO

• Maria will fill here after she comes back to work. *

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Applications IG

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Theory IG

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Data Curation and Preservation IG