What is defined as a moment during system operation that can trigger transitions?

A moment during system operation that can trigger transitions is typically referred to as a Transition Event. This concept emphasizes that a Transition Event is crucial for effecting a change in the state of a system, as it signifies an occurrence that leads to a transition from one state to another.

Transition Events can include various triggers such as arrival of data, user interactions, completion of a process, or other defined conditions that activate a state change. Understanding Transition Events is essential for modeling dynamic behaviors in systems, as they help to clarify when and how the system should respond to different stimuli.

In contrast, a Time Event would be more about specifying a particular time condition which may not necessarily trigger immediate transitions or changes in states. An Operation Call involves invoking a specific operation but doesn’t inherently correspond to state transitions. A State Change refers to the result rather than the trigger—it describes the outcome of these events. Recognizing how Transition Events work is fundamental to effectively modeling and understanding system dynamics.