We define system behavior to have an accurate idea of what the system does, as well as to clearly describe the interactions between components of the system. As this is a very simple application, we can clearly describe application behavior with the aid of a diagram. We will make use of a state diagram to properly describe this behavior.
State diagrams: A state diagram is used to describe the behavior of systems. A state diagram describes a system utilizing different possible states. In a state diagram, there exists a finite number of possible states that a system can be in.
The following is the state diagram for our system, taking into consideration the defined use cases:
Each circle in the preceding diagram represents a ...
