Description: State transition refers to the change from one state to another in a state machine, a fundamental concept in systems theory and computer science. In this context, a ‘state’ represents a particular condition of a system at a given moment, while the ‘transition’ is the process that allows the system to move from one state to another, usually in response to specific events or conditions. This mechanism is crucial in various applications, from operating systems and control systems to programming machine learning algorithms. State machines are used to model the behavior of complex systems, allowing developers and designers to understand and predict how a system will react to different inputs. State transitions can be deterministic, where the next state is predictable, or non-deterministic, where multiple states may be possible. This concept also applies in behavior-driven development, where states and transitions are defined to guide software design based on user interactions. In summary, state transition is a pillar in understanding and designing dynamic systems, facilitating the organization and management of complexity in programming and software engineering.