Process is the component that controls the simulation process. The most important parameter here is time, that is given in minutes and shows how long the simulation is running. For example, 1440 is one day, 2880 is two days.
NB! This class must be marked as Super.
Timer is the component that produces time signal at each time interval. In our simulation, time interval is chosen to be one minute.
This component must be connected to each component, there time is required, for example to Scheduler.