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Subject: [ebxml-cppa] RE: Draft paper from Choreology on Transaction Managementin ebXML


Title: Message
Dear Colleagues,
 
I do humbly apologise for bombarding you all again, but like all good 'software' there was one more bug to find!  I have corrected the two figure captions in the appendix and completed the appendix, which outline the presumed abort and presume nothing algorithms.
 
Please replace previous version with the attached copy - thanks.
 
And thanks to those who have already responded to the paper.  After the Geneva (UN/CEFACT Forum) we will be carefully considering all the feedback.
 
To clarify a couple of points made:
 
This document has no formal status in UN/CEFACT at all.  It is a contribution to the ongoing work on ebXML within UN/CEFACT (and OASIS too).
 
People may need to distinguish between ACID - which stands for Atomicity, Consistency, Isolation and Durability.  Note that the paper only considers the first of these four - atomicity.
 
Protocols can achieve atomicity (or not).  Consistency and durability are more of a wish - and definitely system concerns.  Isolation is more interesting.  It is mostly a system concern, but can have an interaction with the protocol.  BTP allows parties to decide how the will handle isolation issues.  The UMM does not appear to consider isolation issues explicitly - and I think it should (issues of a party / system processing concurrent business transactions which have overlaps on the resources they concern).
 
Best Regards     Tony
A M Fletcher
 
Cohesions 1.0 (TM)
 
Business transaction management software for application coordination
 
Choreology Ltd., 13 Austin Friars, London EC2N 2JX     UK
Tel: +44 (0) 20 76701787         Mobile: +44 (0) 7801 948219
tony.fletcher@choreology.com     (Home: amfletcher@iee.org)
-----Original Message-----
From: Tony Fletcher [mailto:tony_fletcher@btopenworld.com]
Sent: 05 September 2002 22:43
To: BCPS (list) ; BPSS List Ebtwg ; Ebxml-Cppa List
Cc: Arch UeB list; BCP&MC (list); Naujok, Klaus-Dieter (TMG); ebXML CPP/A BTP List; Hansell, Hans Armfelt; Nickull, Duane (ebXML); Un-Tmwg list
Subject: Draft paper from Choreology on Transaction Management in ebXML

Dear Colleagues,
 
Please find attached a draft paper on transaction management in ebXML.  It compares the transaction capabilities currently available (very simple, single action, single party and not fully respecting of responder autonomy) with those which would be available if BTP were to be included (relatively rich set of features - particularly multi-action, multi-party and respectful of each parties autonomy), and also considers a 'middle way' of extending the current approach (multi-action and multi-party, but not fully respecting of responder autonomy).
 
It is hoped that this paper will stimulate discussion and lead to further clarification - as it says on the front of the paper - your constructive comments and suggestions will be most welcome.
 

Best Regards,

Tony                          

Tony Fletcher

Technical Advisor
Choreology Ltd.
13, Austin Friars, London EC2N 2JX UK

Phone: 

+44 (0) 20 7670 1787

Mobile:

+44 (0) 7801 948 219

Fax:   

+44 (0) 20 7670 1785

Web:

www.choreology.com

Cohesions 1.0™

Business transaction management software for application coordination

Home: amfletcher@iee.org

tony.fletcher@choreology.com

Attachment: 2002-09-05_ebXML_Transaction_Management.doc
Description: MS-Word document



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