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Subject: Re: [wsdm] Long-lived interactions requirement proposal
Sorry that I was not able to participate in Thursday's call. Serious questions have been raised from several directions (not just in the Newcastle/Arjuna paper) as to how the work in BPEL4WS/OASIS WS-Business Process group and WSCI/W3C WS-Choreography group relate to the GGF OGSI spec. WSDM will discuss this later this month, when Steve Tuecke returns from vacation. Issues include differences in programming model between message correlation in BPEL/WSCI and locators in OGSI, including scalability, distributed systems program model (instance/session vs process model), uniformity (two models vs one) and flexibility. My question is: Are we writing requirements assuming a session model before we've had the (postponed) discussion as to whether that's the consensus model? My own perspective is that the WSCI/BPEL model (also used in JSR 207-208) is superior, and the industry should converge on that model. I've expressed this opinion to the GGF OGSI group (superior model), but regretably my understanding of the issue came too late to have any impact on this iteration of the OGSI spec. I'd rather not see this recur within the WSDM group. Regards, Shel "VAMBENEPE,WILLIAM (HP-Cupertino,ex1)" wrote: > > Hi all, > > As agreed during the conf call on Thursday, here is a proposal on how to add > support for services involved in long-lived interactions to our MOWS > requirement doc. > > Regards, > > William > > Proposal: > --------- > > In the glossary: Remove all references to conversations and define a session > as "a set of related messages (sent or received by the service) and their > context". > > In the requirements list (section 2), add: > > - The manageability representation MUST allow monitoring (including state > and access to messages) and control of the current sessions of a service. > - The manageability representation MUST allow metrics to be defined at the > session level. > > To unsubscribe from this mailing list (and be removed from the roster of the OASIS TC), go to http://www.oasis-open.org/apps/org/workgroup/wsdm/members/leave_workgroup.php.
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