👉 The process by which a system or entity changes from one state to another, typically through a transition in its behavior or status. This can be achieved either temporarily or permanently, depending on the nature of the transition and the circumstances that led up to it. For example, a switch may be made between two different modes of operation, such as turning off a light for a period of time before turning it back on again. The changeover could involve replacing one circuit with another, changing the setting or parameters