What is State Machine

A state machine is a behavior model.

• It consists of a finite number of states and is therefore also called finite-state machine (FSM).

Based on the current state and a given input the machine performs state transitions and produces outputs.

Basic building blocks of a state machine are states and transitions.

When to use it

When you need to manage a system with distinct, predictable states and specific rules for transitioning between them.

When not to use it

Simple and linear process.

• If there are no distinct states or only a simple linear flow, a state machine might add unnecessary complexity

Highly dynamic or unpredictable workflows

• If the states and transitions are not clearly defined or constantly changing, it might be difficult to design and maintain a state machine.