Computer Science – 3.1 Computers and their components | e-Consult

A state machine is an ideal approach for managing the washing cycle's various stages. The washing cycle can be broken down into distinct states, each representing a specific phase. Here's a possible state machine diagram:

States and Transitions:

• Idle: The washing machine is waiting for a cycle to begin. Transition to 'Water In' upon cycle start.
• Water In: The machine fills with water. Transition to 'Wash' when the desired water level is reached.
• Wash: The washing process occurs. Transition to 'Drain' after the wash cycle duration.
• Drain: The dirty water is pumped out. Transition to 'Spin' after the draining is complete.
• Spin: The drum spins to remove excess water. Transition back to 'Idle' after the spin cycle duration.

Advantages of using a state machine:

• Modularity: Each state represents a distinct part of the process, making the code easier to understand and maintain.
• Reliability: The state machine ensures that the washing cycle progresses in the correct order, preventing errors.
• Easy to Extend: New features (e.g., different wash cycles) can be added by extending the state machine.

Disadvantages:

• Complexity: For very complex systems, the state machine can become large and difficult to manage.
• Potential for Deadlock: Incorrectly designed state machines can lead to deadlocks where the system cannot progress.