Plain English Meaning

After you do something about a problem in flight, check whether it actually fixed the problem. If it did not, decide what to do next.

Full Definition

In aeronautical decision-making, evaluate is the step in which the pilot examines the result of a chosen action to determine whether it produced the desired outcome and whether further action is required. It is the closing step of the DECIDE model (Detect, Estimate, Choose, Identify, Do, Evaluate) and is repeated continuously as conditions change.

Context Anchor

Used in the DECIDE model of aeronautical decision-making, especially after a pilot has taken an action and must judge its effect.

Derivation

From the Latin valere, meaning 'to be worth' or 'to have value.' To evaluate is literally to judge the worth of something — here, the worth of the action just taken.