OGSA Teleconference - 7 June 2007 - Information Services ======================================================== * Attendees: - ZackK - Ellen Stokes (IBM) - Donal Fellows (UoM) - Sergio Andreozzi (INFN) - Chris Kantarjiev (Oracle) - David Snelling (Fujitsu) - Laurence Field (CERN) - Hiro Kishimoto (Fujitsu) - Adrian Toth (Univ of Miskolc) Minutes: Hiro Kishimoto * Summary of New Actions - AI-0607c: Laurence will write up (a) small chart of what this design team will do (plan or schedule) and, (b) generic information services architecture in a simple chart. * Agenda Bashing - No Change * House keeping: - Minutes approval: OK o OGF19 EMS o March F2F EMS o Apr. 12 o OGF20 Info svc o F2F info svc - Action Item o AI-0511a: Ferenc Szalai to confirm NorduGrid/KnowARC participation and potential co-leader of IS design team. Adrian Toth volunteers to serve as co-leader: closed * Aims and Objectives - Laurence: What are we trying to achieve? - Hiro: Architecture design and interface specification. - Ellen: OGSA Arch v1.5 (GFD.80) explains current understanding of what is information services for OGSA. It can be starting line. - Laurence: What are the boundaries and constraints? Are we working group or design team? - Hiro: It is now a design team under OGSA-WG. Let's carry on technical work as a design team for a while. In parallel you can write up proposed charter document for formal WG formation. OGF21 can be target date to have charter BoF if we can have enough progress. - No objection against working as a design team. * Fundamentals - Laurence: What is a general architecture? It should be scalable. I propose to use GMA. - Chris: We should learn from R-GMA. - Agreed to learn from multiple existing works. Looking at exiting systems and bring them together. - Hiro: Is info-GIN work useful? They taught us at OGF19. - Laurence: Yes it is. I was and am involved in info-GIN work. - Laurence: What are the building blocks and critical interfaces? - Query interface - How about data model? If you have same model, it is very easy to inter-operate. - We can leverage SRM approach. We keep only basic interface defined. - What sort of queries people makes? - It is schema issue. - There are different kind of queries. - We have many many services. - We should query multiple services. - Use cases should be specified to justify key services. - Gin-INFO work already identify multiple usecases already. - Agreed to specify Query interface. - Hiro: In addition to query interface, do we need push or notification type interface? - Yes. - Agreed to study info-d, OGSA doc v1.5 , and R-GMA, existing implementations as an first step. - We may have more capabilities to define grid interface. * Next call (June 28) - AI-0607c: Laurence will write up (a) small chart of what this design team will do (plan or schedule) and, (b) generic information services architecture in a simple chart.