[ogsa-dmi-wg] Repost: OGSA-DMI 2010-04-22 Meeting Minutes (embedded within this email for convenience)

[Steve Crouch]

OGSA DMI Skype Telecon - 22 April 2010, 8am BST/GMT+1
-----------------------------------------------------

Present:
   Mario Antonioletti, EPCC [MAA]
   Steve Crouch, University of Southampton [STC]
   David Meredith, STFC [DM]

Agenda:
    1. Agenda bashing
    2. Actions review
    3. Progress update
    4. Opening up an interaction channel with EGI for data movement
      -- Response from Steven Newhouse begin_of_the_skype_highlighting 
    end_of_the_skype_highlighting about OGSA-DMI work (esp. bulk
data copying)
    5. DMI strawman
      -- Feedback required from group
      -- Define timeline for merging DMI strawman into func.spec.
    6. Phil.Trans.A DTS paper (deadline for camera-ready version Monday 
26th)
    7. Preliminary OGF29 discussion
    8. Planning
    9. AOB
    10. Date of next meeting

New Actions:
------------

[STC] Set up a Google poll for next call - and post to the OGSA-DMI list


Completed Actions
-----------------

[DM] Clarify a few points on strawman slides (inc. JSDL approaches,
in-line vs element references)

[STC] After strawman slides updated, send slides to S.Newhouse for
feedback and canvassing requirements

[SM] To send round link to DMI implementation on SourceForge


Ongoing Actions:
----------------

[STC] Draft an extension to OGSA-DMI charter to encompass bulk data
copying activity
   - Edit the version on the GridForge website - the master version

[DM/SM] Look at functional spec and evaluate necessary changes w.r.t.
strawman
   - And post up an example

[STC] Query Ravi about involvement with OGSA-DMI to engage Globus - and
get a technical contact

[DM/STC] Ask Andrew Grimshaw and Mark Morgan 
begin_of_the_skype_highlighting     end_of_the_skype_highlighting 
University of Virginia about:
   - Element references with BulkDataCopy
   - DEPRs and EPRs - opinions on how best to proceed
   - Send presentation to them but summarise in bullet points in the 
email; include corrorobative statements from S.Newhouse

[DM/SM] Improve the strawman document in collaboration
    - Catch up required to merge changes and discuss points
    - Need to change functional spec
    - Couple of days effort
    - Feedback is important

[DM] Upload strawman document to the gridforge in order to have more
visibility to other participants
    - Effectively the presentation uploaded to OGF28 is a first draft
    - Functional spec - change directly?

3. Progress Update

Consensus to table the progress update until next time.

4. Opening up an interaction channel with EGI for data movement

S.Newhouse email reply circulated to list with his permission...

DMI - abstractions include sources and sinks; which could be anything 
including databases.  Opportunity for scope creep - would we want to 
consider transformations; from one data type to another?

iRODS - how does it fits with DMI and DTS?  M.Atkinson - moving 
computation _to_ the data.  What are data sources and data sinks? 
Perhaps we should look further into classifying these?  e.g. OGSA-DAI, 
SRM, etc. at the moment, goes back to EPR/DEPRs and how to specify the 
metadata within other data within it?  e.g. for DBMS - perhaps could put 
in SQL direct to access data?  Or, could have an abstraction mechanism 
to group data together at the source end and use that within the 
DEPR/EPR.  Discussion of how to access multiple files within a source; 
specify DBMS data access requirements in the transfer requirements.

Keep tabs on the EMI/UMD process for adopting software for the DTS for 
its possible inclusion (virtual or otherwise) within the UMD.

Data requirements from EGI - data session at the EGI tech forum; perhaps 
we should have representative at the forum from OGSA-DMI.

5. DMI strawman

Consensus to table the DMI strawman discussion until next time.

6. Phil.Trans.A DTS paper

DTS paper - D.Meredith to trim down the paper and send out a revised 
version hopefully today for review.

7. Preliminary OGF29 discussion

S.Crouch very likely going so far.  Need to do some preliminary work to 
bring others in.  Ask A.Grimshaw about his attendance (when emailing 
about EPRS/DEPRS and element references).

8. Planning
9. AOB

10. Date of next meeting

New action: [STC] Set up a Google poll for next call and post to the 
OGSA-DMI list.