The modelling of the business logic/business logic (control flow) of any process or value stream and the definition of the associated data types and limit, target and switching values (data flow) is done using a graphical process description method.
A process or value stream is divided into process sections by process reference points (PRP). At the PRPs, status transitions take place exactly when all conditions for them are fulfilled.
The behavior model (control flow plus data flow), which is defined so completely without programming (no code), represents the executable control program without further manual transformation or compilation after “injection” into the Execution Engine. The objects in the model are directly connected to the signal and communication level of the real world.