Just wondering how people model the situation where the user can perform an action during a step being performed by the system.
For example:
1. User asks system to initiate (ongoing) process A
2. System starts performing process A (which keeps going until explicitly stopped)
3. User asks system to stop process A
During step 2 the user can adjust some parameter of process A, that the system must take into account.
I had something like (simplified):
Alternate Flow : Adjust Inputs
Prior to step 3 of the Main Flow, the user can adjust input values:
1. user changes value XYZ
2. return to main flow
But it's not really an 'alternate' flow for step 3, or any other step.
I guess there are 2 questions here: how to word an ongoing process in a use case; and how to model the situation described above.