Capture criterion.

A test case to determine if an armed objective has been captured; In avionics, an aircraft might have an objective to fly to a radial of a radio station, then to fly along it. While enroute, the objective is armed, meaning that the crew and software are attempting to reach the radial. The radial is captured and the objective is met when the capture criteria are met. In this case, the capture criterion might be bearing to the radio station is within 5deg of 270deg. An objective can have multiple criteria. Capture criterion are often used with radio navigation to determine a transition from armed to active.