Which action waits for an asynchronous event before continuing?

Which action waits for an asynchronous event before continuing?

• A. Accept event action.
• B. Wait time action.
• C. Send signal action.
• D. Call behavior action.

Answer: (A)

Waiting for an asynchronous event before continuing is modeled by an Accept Event Action. This kind of action represents a pause in the workflow that holds until a specific external event occurs—like a message arriving or a sensor signal—at which point the process resumes. It captures the idea of waiting for something to happen independently of a fixed timer. In contrast, a wait time action simply delays the flow for a set duration, regardless of any events. A send signal action produces a signal to others but does not pause for something to happen. A call behavior action starts another behavior and the flow continues according to the completion of that behavior, not because an external event occurred.

Waiting for an asynchronous event before continuing is modeled by an Accept Event Action. This kind of action represents a pause in the workflow that holds until a specific external event occurs—like a message arriving or a sensor signal—at which point the process resumes. It captures the idea of waiting for something to happen independently of a fixed timer.

In contrast, a wait time action simply delays the flow for a set duration, regardless of any events. A send signal action produces a signal to others but does not pause for something to happen. A call behavior action starts another behavior and the flow continues according to the completion of that behavior, not because an external event occurred.