1. Report on WP-A2 to AstroGrid consortium NeSC, Edinburgh, 2001-12-17 Guy Rixon

2. Last quarter: resources used 40% of GTR (70% if we include architecture work) ~6 sw of programmer time gratis ex CASU (J. Irwin working on portal) No charged input from other AstroGrid staff (but lots of friendly help: thanks folks)

3. System architecture Architecture defines criteria for evaluating technology Much thought; initial diagrams and notes produced Generating disagreement already, so must be working!

4. Investigations started SRB XML/XSLT/RDF etc. Globus Spitfire

5. Portal experiment Portal exists Useful experiment into metadata, ergonomics, visualization Possibly of use in later evaluations of technology

6. ADASS Portal experiment described as poster and demonstration Paper in proceedings Useful contacts with people and projects

7. Current state of progress

8. Planned for next quarter Processing architecture:needed for report to GSC in March? Data architecture, including interoperability work: to meet our AVO commitments Authentication investigation: to support the architecture work First/second look at some technology: to sanity-check the architecture work Meetings ad nauseum

9. Architecture More-detailed look at areas of current diagrams: Authorization, resource tracking Resource discovery Resource mapping UML version Interoperability work: Formats Semantics standards

10. Technology investigations XML etc. Spitfire UCD/AstroRes/ASU/GLU Globus Vizier/Aladin/Simbad

11. Meetings The usual… Interoperability meeting, CDS, 18/19 th January GGF4 in Toronto? GGF5 in Edinburgh?

12. People David Giaretta, ~4 sw? Bob Bentley’s locum, ~7sw GTR 10 sw Nothing from new hirelings

13. Issues Architecture definition and technology evaluations have circular dependency Less effort than expected. MSSL question: hard to delegate work to unknown workers.