BPMN stardards and workarounds

[whataboutbpm]

Hello, After reading this FAQ
What does Activiti do for me as a Java developer?
I think that it might be Activiti what I was looking for so long, but I have invested a long time studying Intalio BPMS community edition (you can find my insights and my interest in BPMS engine here What About BPM.
As you can see there is a topic about BPMN standard as Bruce Silver explain in his book "BPMN Method and Style", the presented model would not work as desired in the above mentioned Engine, so they gave me the advice to re-model it in order to get an executable process based more in bpel like constructs.
[attachment=0]DeadlineConMonitor.JPG[/attachment]
My Question is: May I use activity modeler to design such a monitored process without struggling with workarounds?
One of my aims in research is the development of a "human task list manager application" as you can see in my blog abstracted from the server engine implementation.
thank you in advance.
Best Regards,
Gil.

[jbarrez]

Could you elaborate on your goal? What do you mean with 'without workarounds'?

The Modeler does allow modeling processes using constructs which might not be executable on the engine.

[whataboutbpm]

Hello, I already realized that signavio modeler is not for executable processes. I was trying to develop a process which is monitored by another subprocess in order to let the initiator to decide, in case of dealine of the first, if she extends the due duration of the process or just cancel it. For that I wish to use BPMN 2 constructs like event subprocess and use the terminate end event as Bruce Silver explains in his book "BPMN method and style" which may not cause the termination of the main process but just the termination of parallel subprocesses then continue the normal flow (that's the way he explain its standard behaviour, this is not the way intalio bpms executes it, it just terminates all the process with and terminated end state).
I would like to know also how difficult it could be using activiti to develop such a process as it is modeled in the blog about BPMN standards and Bruce Silver. May be it is just an stupid design if so just tell me, I ever will be learning from criticism. If there is a better way to accomplish that using activiti I wish to know it also.
Thank you and best regards,
Gil.