[werkflow-user] Interaction between app and process engine

I am currently in the start up phase of evaluating werkflow (and blissed),
maybe to use one of them in a upcoming development project. I am very
impressed so far.

Below a question regarding my testing of werkflow.

What I haven't been able to work out is how communication beween my
application i.e. a java class initiating a werkflow process, and the process
itself works. What I mean is for example how you set an output attribute
value in the process and catch it in the initializing code, if possible, or
somehow get a result/status back? 

Is there any examples available. Would it be possible for anyone to give me
a hint. I have played around but not manage to get the grips of that. 

Best regards

/Kristofer Eriksson