(1) A relationship between two states indicating that an object in the first state performs certain specified actions and then enters the second state when a specified event occurs and specified conditions are satisfied. On such a change of state, the transition is said to fire.
(2) The phase of the software development life cycle in which the final product is completed and made available to users.
(3) In a business state machine, the connection between states that guards the execution between them. A transition recognizes an appropriate triggering operation, evaluates the conditions necessary for execution to flow through the transition, and determines the actions that can occur if execution is allowed.