Re: [Fwd: Re: [ebxml-bp] [ebBP] 6/28/2004: Work Item 21 - Summary forConditional Constraints-beginsWhen, endsWhen!!]

["Monica J. Martin" <Monica.Martin@Sun.COM>]

>Fletcher: 2)  I understand, in principle, the idea of guards on actions - the
>beginsWhen (or the negative do not beginWhen!) but I do not understand the
>concept of endsWhen - because I just have!  If you have just ended a
>business transaction or a collaboration how can you have a condition on
>ending it - one can not go back in time without considerable difficulty - or
>the aid of the film industry
>  
>
mm1: You're keeping us on our toes, Tony. endsWhen: A description of an 
event external to this
collaboration that normally <<causes this collaboration to conclude>>.

We did have a case where you enter into a registration process for a 
certification. You try three times and are unsuccessful. The business 
rules and conditions state that you are allow only three strikes. 
Therefore, the collaboration ends after the third try (via the endsWhen) 
and you have to start again. John Yunker's case. ;-)