RE: Collaboration Services (was: Business Service Interface)

[Bob Haugen <linkage@interaccess.com>]

<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