1. Victoria, May 19 2006Closing plenary Theory Interest Group Closing plenary Victoria, May 19 2006

2. Closing plenary Sessions I + II Registry for theorists (Ray Plante) Characterisation for theorists (Mireille Louys) UCDs for theorists: computation namespace (Laurie Shaw) SSAP for theorists: TSAP (Pedro Osuna) DAL for theorists: Implementation of a SNAP-like service for the TVO (Claudio Gheller)

3. Victoria, May 19 2006Closing plenary Main conclusion Registration onf non-standard services possible already now Characterisation promising approach applicable to theory data. Synthetic spectra TSAP: –Can be subsumed in SSAP if: POS not required, if provided, return null result (same with SIZE, TIME) FORMAT=METADATA (or request=getCapabilities) must remain –Registration possible once registry accepts “SSA” as standard service type and using type=SIMULATION to indicate theory data

4. Victoria, May 19 2006Closing plenary Breakout session Tuesday: UCDs Discussion Tuesday afternoon with APM Compile list of words, no classification yet into UCD vs Standard Word Some structure, that might lead to such a classification Working TWiki document on IVOA/TheorySemanticVocabulary Plan: work this out further to come to proposal –List on TWiki open for two weeks after announcement email –Cross-check with existing list (Semantics/VOEvent/…) –Propose to Semantics WG –Longer term: use in data model for describing simulations (see there)

5. Victoria, May 19 2006Closing plenary Breakout session Wednesday: Data formats and SNAP Focus on intermediate and large scale simulations: particles and mesh in 3D space. Issue: many proprietary formats Services need to produce datasets users can understand –Straightforward choice: VOTable, possibly using BINARY data, possibly base64 encoded. –Alternative proposal: allow original file but force publisher to provide wrapper codelets to read the files and produce … what ? Plans: –Sell VOTable+binary+base64 to theory community –Write prototype/template translators for some complex existing data types. –Go ahead with SNAP (DAL approved)

6. Victoria, May 19 2006Closing plenary What is SNAP ? Subject: –N-body –(adaptive) mesh –“evolving objects in 3D space” Functions: –Retrieve whole –Retrieve part: Question, how to decide which part ? –Proposal: need functions creating small, summarising, meaningful info about the dataset. Examples: thumbnail, random sample, projection, gridding (for particles). (see CGs presentation) Query: based on metadata model Protocol: not discussed here, but initial draft exists. ADQL ?

7. Victoria, May 19 2006Closing plenary Session III (Thursday) Summary of work to date Results: –Task group for Semantics UCD and Standard Vocab list –Task group for SNAP functionality protocol –Market proposals to theorists (task group + project contact persons) and get services registered –Volunteers to prototype UWS oslt for theory services

8. Victoria, May 19 2006Closing plenary Breakout session Friday: Modeling metadata Focus: describe SNAP-like simulations –N-body –(adaptive) mesh –“evolving objects in 3D space” Subjects: –Physics, phenomenology (semantics) –Design and provenance –Characterisation Use –SNAP service –Registration Plan: –First get data dictionary (i.e. the standard vocab in semantics) –Conceptual, analysis model –Logical model –Serialisation/binding (XML, Java etc, Relational model (for ADQL))

9. Victoria, May 19 2006Closing plenary Road map Finish use cases note (on TWiki, June 2006) TSAP ready to go ahead, dependency on SSA (standard) and on Registry (SSA type) Generic service registration using standard vocab (outreach) –All the time –GL will contact project contact persons about this (next week) Standard vocabulary/UCDs proposal for theory (End June 2006) –TWiki list open for two more weeks (half June 2006) –Work over with small group in following month and submit to Semantics (July 2006) Data formats –Poll of theorists into their data formats and willingness to publish their data in specified manner (Dave Zuerk et al, Dave DeYoung, report by Moscow hopefully) –Volunteers will try translating some typical formats into VOTable+base64 binary data, report in Moscow. SNAP (go ahead by DT) –Data model (pending approval?), discussion in Moscow –Protocol, discussion in Moscow –0.5 (May 2007) Other protocols, wait for stated desire Service use in GWS-manner –Depends on GWS –Volunteers are there to wrap their existing services in any specified manner Theory/Observational interface –Virtual telescope spec+prototype May 2008