Raw minutes 2010-JAN-07

[Danny van der Rijn <dannyv@tibco.com>]

[7:58] Danny van der Rijn: 1. Roll Call
http://www.oasis-open.org/apps/org/workgroup/sca-bpel/members/roster.php

2. Appointment of scribe
Scribe list attached below

3. Agenda bashing

4. Approval of minutes
2009-12-10 http://www.oasis-open.org/apps/org/workgroup/sca-bpel/download.php/35738/2009-12-10.html
2009-12-17 http://www.oasis-open.org/apps/org/workgroup/sca-bpel/download.php/35739/2009-12-17.html

5. Review of Action Items
#0109 Mike Edwards - Send instructions for running the Assembly tests

#0115 Mike Edwards - Prepare an updated version of the proposal for issue 58 (rewriting section 2.1.1 to remove the nested-if)

#0117 Danny - Create a new issue and a proposal for the 0..1 case (related to issue 53)

#0119 Dieter - Editors to update the SCA BPEL spec to reference the latest namespace/XSD

#0120 Dieter - Editors to check the use of the new SCA namespace in the latest SCA BPEL xsd

6. New Issues
None

7. Testing
MikeE to send instructions for running the tests
Here is a rough break up of work for creating the test cases. More volunteers are appreciated.
Sanjay - SBL-TA-1001 to SBL-TA-2018
Anish - SBL-TA-3001 to SBL-TA-3026

8. Issue Discussion

a) Issue 58 - Need to add Capability to indicate that a PartnerLink should be ignored when introspecting the ComponentType of a BPEL process
http://www.osoa.org/jira/browse/BPEL-58
Email discussion: http://lists.oasis-open.org/archives/sca-bpel/200909/msg00016.html
Awaiting a new proposal from MikeE based on 2009-10-29 concall discussions

b) Issue 61 - Need to deal with variable initialization not being idempotent
http://osoa.org/jira/browse/BPEL-61
RAISER: Danny van der Rijn
Proposal: none


9. AOB

-----------------------------------------
Scribe list:
* Kand, Khanderao (Last scribed: 2009-07-23): 6
* van der Rijn, Danny (Last scribed: 2009-09-03): 11
* Rowley, Mr Michael (Last scribed: 2009-08-06): 8
* Anish Karmarkar (Last scribed: 2009-10-15): 2
* Edwards, Mike (Last scribed: 2009-10-29): 1
* Koenig, Mr Dieter (Last scribed: 2009-11-05): 13
* Malhotra, Mr Ashok (Last scribed: 2009-11-12): 14
* Andrabi, Mr. Najeeb (Last scribed: 2009-11-19): 13
* Chapman, Dr Martin (Last scribed: 2009-12-10): 11
* Patil, Sanjay (Last scribed: 2009-12-17): 1

[8:00] anish: Date: 2010-01-07

[8:00] Danny van der Rijn I'll scribe

[8:02] anish: ScribeNick: Danny van der Rijn

[8:02] anish: Scribe: Danny van der Rijn

[8:03] anish: Chair: Anish Karmarkar

[8:03] anish: Agenda: http://lists.oasis-open.org/archives/sca-bpel/200912/msg00017.html

[8:05] Danny van der Rijn: Topic:  Approval of minutes 2009 Dec 10 and 2009 Dec 17

[8:06] Danny van der Rijn: Approved w/o Objection

[8:06] Danny van der Rijn: Topic:  AI Review

[8:07] Danny van der Rijn: Mike not present for his AIs

[8:07] Danny van der Rijn: As promised, Danny has made no progress on his AI

[8:07] Dieter Koenig: re AI #0119/#0120: 
SCA-BPEL 1.1 CD 02 rev 5 available at 
http://www.oasis-open.org/apps/org/workgroup/sca-bpel/download.php/35543/sca-bpel-1.1-spec-cd02-rev5.zip

[8:08] Danny van der Rijn: AI 119 and 120 Closed

[8:08] Danny van der Rijn: Topic: Testing

[8:09] Danny van der Rijn: Skipping until Mike is on call or we have instructions

[8:09] Danny van der Rijn: Topic:  Issue 58

[8:10] Danny van der Rijn: Deferred until proposal

[8:10] Danny van der Rijn: Topic:  Issue 61

[8:15] Mike Edwards: Sorry folks, I am on a call that is overrunning

[8:19] Dieter Koenig: WS-BPEL 2.0: "[SA00026] Variable initialization logic contained in scopes that contain or whose children contain a start activity MUST only use idempotent functions in the from-spec. The use of idempotent functions allows for all the values for such variables to be pre-computed and re-used on each process instance."

[8:33] Danny van der Rijn: Long discussion of what is idempotent

[8:34] Ashok: Wikipedia tells us

[8:34] Ashok: Idempotence (pronounced /admpotns/) describes the property of operations in mathematics and computer science that means that multiple applications of the operation do not change the result. The concept of idempotence arises in a number of places in abstract algebra (in particular, in the theory of projectors and closure operators) and functional programming (in which it is connected to the property of referential transparency).

[8:37] anish: Here is what HTTP says about idempotency:

[8:37] anish: Methods can also have the property of "idempotence" in that (aside from error or expiration issues) the side-effects of N > 0 identical requests is the same as for a single request. The methods GET, HEAD, PUT and DELETE share this property. Also, the methods OPTIONS and TRACE SHOULD NOT have side effects, and so are inherently idempotent.

[8:39] Mike Edwards: In computer science, the term idempotent is used to describe methods or subroutine calls that can safely be called multiple times, as invoking the procedure a single time or multiple times has the same result; i.e., after any number of method calls all variables have the same value as they did after the first call.

[8:39] Mike Edwards: "Looking up some customer's name and address in a database are typically idempotent, since this will not cause the database to change."

[8:39] Mike Edwards: but this does not imply that the value in the database will never change

[8:47] Danny van der Rijn: Mike:  idempotency should be with respect to the SCA Domain Configuration

[8:52] Danny van der Rijn: Action: Anish - write proposal for Issue 61 to tie idempotency to the SCA Domain Configuration

[8:59] Danny van der Rijn: Adjourned

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