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Subject: RE: Collaboration Services (was: Business Service Interface)
<Martin Sachs> The IBM tpaML proposal includes sequencing rules which specify the required order in which each party can issue messages to the other party. This appears to cover a large number of the practical cases. The run-time middleware can verify whether the sequencing rules are being obeyed. At the TP team Face to Face earlier this month, we spoke about developing a more general model such as a event-condition-action state machine for the cases where the tpaML sequencing rules are not sufficient. </Martin Sachs> Marty, at the F2F meeting, did the differences between the sequencing approaches of TP and the BP metamodel get resolved? Also, got any examples of what you are thinking of for the "large number of practical cases"? I'm not being skeptical, just trying to get a handle on what business scenarios people have in mind for sequencing rules. I assume you've seen some of the ones I posted recently in this thread. If you listed some previously and I missed them, let me know and I'll go to the archives. Regards, Bob Haugen
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