In CSOSS, what is a 'trigger' in an SOE?

• A. A time-delay setting that postpones actions.
• B. An indicator that a sequence has completed.
• C. A condition or event that initiates a sequence or action.
• D. A log entry used for post-event review.

Answer: (C)

A trigger in an SOE is the condition or event that starts a sequence or action. It’s the initiating moment that makes the next step in the operation begin—things like a switch changing state, a sensor crossing a threshold, or a timer reaching a set point can serve as triggers. The essential idea is that the trigger causes the sequence to commence.

The other ideas describe things that don’t start actions: a time-delay setting postpones actions rather than initiating them; an indicator that a sequence has completed signals the end, not the start; and a log entry is for recording what happened after the fact, not for kicking off a sequence.