[rm-wg] Updated Minutes
David Snelling
David.Snelling at UK.Fujitsu.com
Fri Sep 28 12:32:40 CDT 2007
Folks,
Here is an update with people's names corrected.
Attendees:
Sergio Andreozzi
Marco Canaparo
Michele Carpenè
Dave Snelling
Steven Newhouse
Michel Drescher
Paul Strong
Erol Bozak
Introductions:
Restart after the summer. Dave and Paul have been chasing
implementation activities related to the RM.
Next Steps:
1) Bring up the document to speed.
2) Sync with the GLUE WG next week.
3) Experiences with the model from Paul
- Proposal: Remove ManagedComponent, retaining the capabilities.
- Retain Manager and Pattern for the time being.
- The manager component can be a managed component.
- In CIM there is no explicit manager, but represented as services
- How are the managing capabilities exposed - Not there in this
diagram,
but they exist in the model.
- Policy I still under study. At eBay it is not a GridComponent.
- Agreed.
- Action: Paul to update the UML.
3) Discussion of Grid Component State:
- Operational State is behavioral.
- Admin status is "where" the object is in it's external
environment, e.g. workflow.
- Admin status is controlled externally
- Lifecycle state is part of the Admin status.
- The lifecycle states are dependent on the management capabilities
that can be applied to the component.
- There may be multiple views of the state.
- Replace the component's notion of state with a lock and an owner.
- The manager then provides the "value" of the Admin Status
- What needs to be done?
- Update the diagrams to reflect the rearrangement of properties.
- Action: Paul to modify diagram accordingly.
4) State and Configuration
- Configuration attributes describe the behavior of a component.
- These are typically externally set
- State attributes describe the component. These are typically
changed internally.
- Action: Paul to diagrams
5) The need to subclass relationships.
- There is a small weakness in UML here.
- RDF/OWL handle this nicely.
- E.g. RunsInJVM <: RunsOn <: InstantionDepends <: DependsOn
- Association classes cannot be subclassed.
- Question: Should we move over to RDF or push UML a bit?
- Agree that subclasses of relationships are needed.
- Action: Paul to email Grady.
- Sergio: To ask internally for other perspectives.
6) Action on all to provide feedback to the new diagrams.
7) Action on all to review GLUE documents.
https://forge.ogf.org/sf/docman/do/viewDocument/projects.glue-wg/
docman.root.drafts/doc14639
Moreover, the status and open issues of GLUE/RM integration is collected
in this page:
https://forge.ogf.org/sf/wiki/do/viewPage/projects.glue-wg/wiki/RM2GLUE
--
Take care:
Dr. David Snelling < David . Snelling . UK . Fujitsu . com >
Fujitsu Laboratories of Europe Limited
Hayes Park Central
Hayes End Road
Hayes, Middlesex UB4 8FE
Reg. No. 4153469
+44-208-606-4649 (Office)
+44-7768-807526 (Mobile)
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