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France VO
GAVO - Germany
HVO - Hungary
Japan-VO
Korean VO
NVO - USA
RVO - Russia
SVO - Spain
VO-India
VObs.it - Italy
Applications WG
Data Access Layer WG
Data Models WG
Grid and Web Services Working Group
Following final discussions at the Trieste Interop, work has been completed on the VOSpace 1.1 and Credential Delegation Protocol specifications over the summer and these have been released as Proposed Recommendations. They are both currently now in their RFC periods. There were some versioning issues with the VOSpace specification which highlighted a weakness in the existing Standards and Documents process but this is hopefully addressed in the revised process.
New Working Drafts of the VOSI and UWS specifications have also been released and these will hopefully be promoted to PR status following this meeting. The WS Basic Profile specification was also finally released as a proper IVOA Working Draft but dependencies on VOSI have been identified and these two - WS Basic Profile and VOSI - will now be kept in step.
Starting with this meeting, we will be moving onto VOSpace 2.0 - the RESTful version - and authorization. We are revisiting logging and continuing to look at alternate security mechanisms, driven by industry practices. We will also be considering whether we need to define "web service friendly" versions of VO standards, such as VOTable, and should we be recommending a particular set of software libraries for implementors.
Registry WG
Semantics/UCD WG
VOEvent
Activities since Trieste have focused on discussions and preparations for VOEvent v2.0. Intent is to move this to proposed recommendation stage in coordination with the VOEvent IV workshop at UCSC at the end of April 2009.
VOEvent v2.0 will include support for the representation of time series and orbital elements, for improved references to external URIs of various types, for explicitly referencing external schemata in support of non-native event streams, and for a controlled vocabular(ies) based on the excellent work of the semantics WG. In addition, the WG is investigating different options for authentication via digital signing technologies.
As separate initiatives that will likely result in distinct proposed recommendations, the WG is discussing the Simple Event Access Protocol (SEAP) and Registry support for servers serving streams of scientifically related VOEvent packets. These efforts are not currently scheduled, but one would anticipate significant progress over roughly the next year.
The VOEvent WG continues to pursue collaboration with several extra-IVOA entities, particularly including the internationally sited Heterogeneous Telescope Networks (HTN) consortium and NASA's Gamma-ray bursts Coordinates Network (GCN). We are aggressively pursuing additional event streams, for instance, events resulting from the upcoming Dark Energy Survey to be conducted with the very wide field DECam at the CTIO 4m Blanco telescope.
In addition to VOEvent sessions and joint sessions at the Baltimore Interop, WG personnel will be presenting at the ADASS Sky/WWT tutorial and at the ADASS BOF, "Architectures for Time Domain Astronomy". Several ADASS contributions derive from VOEvent technologies and projects.
VOQL WG
VOTable WG
Astro-RG IG
Data Curation and Preservation IG
Theory IG
Stds & Process
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