[Fwd: Possible usage of pre-condition for CPA negotiation businessprocess?]

[Sacha Schlegel <sacha_oasis@schlegel.li>]

Hi ebBP team

This email was supposed to go to the ebBP mailinglist.

Sacha

-------- Forwarded Message --------
> From: Sacha Schlegel <sacha_oasis@schlegel.li>
> Cc: ebxml-cppa-negot <ebxml-cppa-negot@lists.oasis-open.org>
> Subject: Possible usage of pre-condition for CPA negotiation business
> process?
> Date: Tue, 20 Jul 2004 21:30:16 +0200
> Hi ebBP team
> 
> I might have a use case for a pre-condition in the CPA negotiation
> business process.
> 
> Actually the negotiation ebBP allows at any stage after the initial
> offer to transit to 
> 
> o the "CPA Final BTA", 
> o the "CPA Final BTA Init Initiator BTA"
> o the "CPA Final BTA Init Responder"
> 
> either from 
> o a "CPA Offer BTA", 
> o a "CPA Counter Offer 2 BTA", or 
> o a "CPA Counter Offer 1 BTA" 
> 
> by sending an "CPA Accept Offer Doc" business document to accept a CPA
> offer.
> 
> Thats good but there is one problem, once communicated to Marty Sachs
> (sorry dont have the msg handy).
> 
> Actually it should only be possible to enter into one of the "final"
> business transaction activities (bta's), once ALL issues have been
> resolved (negotiated). Because ideally I cannot accept a CPA if it is
> still an invalid CPA. So it looks like there could be a pre-condition be
> placed into the "final" bta's to be only allowed to enter a "final" bta
> if there is a valid CPA (in the beginning it was a CPA template and in
> the end of a CPA negotiation it should be (fingers crossed ;) a final
> CPA). 
> 
> So this condition could be expressed in the negotiation ebBP bye a pre-
> condition.
> 
> What do you think?
> 
> Actually I think there was a request for post-conditions use cases...
> 
> Kind regards
> 
> Sacha
> 
>

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