(Click for full-size image)

To summarise these:

1. user logs into portal,
   - opens workflow page in portal (portlet?),
   - selects to run simple query (single dataset)
2. workflow displays query form
3. user enters dataset selection criteria
4. workflow looks up datasets in service.registry
5. user selects dataset,
   - enters query (AQL),
   - runs job
6. workflow submits job to job control
7. job control splits job into tasks and stores them
8. scheduler picks next task,
   - looks up details in service.registry,
   - submits query to dataset
9. dataset decodes AQL,
   - runs query,
   - stores results as VOTable,
   - logs query completion to message queue
10. job control checks if any more tasks in job,
    - logs job completion
11. user opens ms.explorer
12. ms.explorer looks up user items in ms.registry,
    - displays items
13. user selects copy option
14. ms.explorer displays copy form
15. user enters from/to details (from results to myspace),
    - hits go
16. ms.explorer runs data mover
17. data mover gets details of locations,
    - assigns copy to ms.server
18. ms.server copies results from data centre to self,
    - updates ms.registry
19. ms.explorer redisplays user items
20. user selects results item,
    - selects view option
21. portal opens data viewer page
22. data viewer gets item details from ms.registry (default view mode),
    - reads data,
    - displays results in default mode (tabular probably)

-- TonyLinde - 16 Mar 2003