[acs-wg] f2f minutes

[Sachiko Wada]

Hi team,

Here is the minutes of the Aug F2F day 2.
Please review it and point out where the record is not correct, if any.

We already reviewed the minutes of day 1.
I added the name of materials that are now on the GridForge. Thanks Keisuke!

The minutes are also available at Gridforge:
https://forge.gridforum.org/projects/acs-wg/document/minutes-20050801-f2f.txt/en/2 (day 1)
https://forge.gridforum.org/projects/acs-wg/document/minutes-20050802-f2f.txt/en/1 (day 2)

Sachiko

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ACS F2F DAY 2
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Date and Time: Aug 2 9:10-16:30 EDT 2005
Location: IBM, Durham RTP.
Participants:
  Keisuke Fukui (Fujitsu)
  Peter Ziu (Northrop)
  Thomas Studwell (IBM)
  Michael Behrens (R2AD)
  Sachiko Wada (ASCADE) - minutes
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* 9:10 Role call, note taker, time keeper, agenda bashing. 

* 9:20 Review of the minutes 
  Minutes approved.

* 9:25 Review of the ACS requirements use case for SDD TC
 Material: cb_d3ACSreqsForSDDinput.doc
  With one refinement of the sentence from Tom, the requirements are 
  approved. 
 
* 9:30 Review of the OGSA F2F slides
 Material: ACSoverview-OGSA-F2F-Aug05-draft.ppt 
  We reviewed the OGSA presentation material which Mike posted on Aug 2nd.
 Action: Sachiko, to send the original file of the CDDLM sequence file
         to Mike. Done on Aug 3.
 Action: Mike, to send updated presentation material to the ml. Done on Aug 4.

* 9:50 What is AAF? 
  Agreed:
   AAF is a specification which defines the format of AA Document.
   AA Document logically consists of two elements: AAD and AC.
   AAD is always required but AC can be empty, in case the empty archive is
   to be created. AC consists of DD and other artifacts.

* 10:50 break

* 11:10 Asynchronous Messaging
  Agreed to allow asynchronous message exchange in case of the use case C
  that we discussed yesterday below and transfer.
    C) Create using soap message but with out of band transport for a (part 
       of) the AA document and the uri is provided by the ACS (the ACS 
       client acts as a file server).
  If we can drop the transfer from the interface and the above, we may
  ommit the asynchronous interface. On the other hand OASIS ASAP call for
  asynchronous interface to be provided for certain type of the interfaces,
  which may applies to ACS. Need more consideration.

* 11:40 OGSA document status review by Pete
  We read through the OGSA Basic Profile.
  Agreed to keep eyes on OGSA Basic Profile, WS-I and other standards so 
  that ACS won't violate them.

* 11:45 Lunch

* 13:00 What's AAF (continued)
 ** IUPF spec
   Tom explained briefly about IUPF specification which defines physical format
   of IU package. This spec was submitted to W3C along with IUDD spec.
   ACS may be able to refer it as physical format for AA.
   Whether SDD covers IUPF is not sure but Sun proposed SDD should. 
 ** Relationship between AAD and SDD
   We recognized that there is some common information between AAD and SDD,
   for example, list of application contents.
   As for identification, Tom mentioned that the identification for AA and the
   IU identification are different. We need more discussion on what the AA 
   identification is.
   We agreed that AAD should not define isolated spec but should extend SDD.
   We will put a requirement on SDD to make an extension point in their spec.
   Tom mentioned that the extension point for AAD will be made in IUPF. 
   Keisuke pointed that the schedule since SDD spec will still be under 
   discussion in October when we plan to finish our draft.
 ** What AAD contains.
   To realize ARI capability, AAD should contain such kind of information as
   identification, owner information, file list, and access control of
   each content. The detailed was not discussed due to time constraint.
   We will continue the discussion on the ML and telecons.

* 14:50 break

* 15:10 AA Replication
  The replication use case proposed by Pete and Mike was recognized as 
  an effective usage scenario of ACS.
  To what extent ACS should define as normative spec concerning replication
  and synchronization was the argument point.
   - One time copy and no synchronization.
   - One way synchronization.
   - Two way synchronization.
  Keisuke said that the third party can take care of the synchronization,
  for example, management between geographically distributed application
  contents.
  There was a discussion the replication (including a one time copy,
  modification propagation and bi-directional synchronization) should
  ever to be a part of the part of ACS spec. Keisuke proposed simplest
  scope for version one for this to be out of scope. We will revisit this
  in the ML and telecons.
  There is an OREP-WG, to define the replication mechanism but they seems to
  be dormant.
  Sachiko will post some replication sequences to the ml so that we can
  clarify which properties and operations are needed (or not needed) to 
  achieve the replication capability.
 Action: Sachiko, to send sequence diagrams as an input for further 
         discussion by next call.

* 16:25 Wrap up for day 2
  The following topics were not discussed due to time restriction.
  They are to be discussed at the regular call.
   - AA Modification
   - AA Deletion
   - Version Management
  The detailed schedule for the spec writing will also be discussed after
  the all remained topics are cleared.