Process as Interface ?

Question

Hi All,
Can somebody tell me how to implement Process as Interface.
I have a process called 'A' and in that process I have a process creation activity.
I have another Process (Interface) called 'B' and also mapped that process B to Process A's process creation activity.
Now I have another process called C where I have the implementation of business logic.
In java the class that implement the Interface has to give body to those abstract method that are defined in Interface.
I want to do same kind of stuff in ALBPM that means since my process A's process creation activity extends/implements/attached to a process B (interface). Now how to make the communication happen between Process A, B & C since the business logic is there in process C. Is this be achievable ?
If not what is the purpose of Interface implementation w.r.t ALBPM 5.7/6.0 and how we can achieve the interface implementation. Thanks in advance.
Bibhu

Answer 1

Not sure this is in the documentation, but you use a process interface as a way to call a subprocess dynamically at runtime.
Sometimes you want the flexibility to wait until runtime to decide which subprocess to call. Your process model might look like a spider on a mirror when this is the case. I use it when I have an activity with several conditional transitions leaving it. If each of these transitions are going to a different subprocess activity, you might want to consider using a process interface to dynamically call the correct process on the fly.
An example is when you have four differnt types of loans each handled differently. If you use the process interface to invoke the correct loan subprocess (again based on the loan type) then instead of having an activity with four conditional transitions going into four different subflow activiities, you would have a single transition going into a subflow with the process interface activity. One of the incoming arguments to the process interface is the subprocess's id.
The benefit to this approach is that it cleans up your process (a single transition instead of the many conditional transitions). The drawback is that it is abstract and difficult for some to understand what is going on behind the scenes.
Dan