Plain English Meaning
After you spot something that could affect the flight, Process is when you stop and think it through: How bad is it? What are my choices? What am I going to do about it?
Full Definition
In the Three-P Model (Perceive, Process, Perform), Process is the second step, in which the pilot evaluates a perceived hazard by considering its impact on the flight, weighing the available options, and deciding on a course of action. It is the thinking and judgment stage that links what the pilot has noticed to what the pilot will actually do.
Context Anchor
Seen in aeronautical decision-making training, especially in the Three-P model: Perceive, Process, Perform.
Derivation
From Latin processus, meaning 'a going forward' or 'advance.' In aviation decision-making, it captures the idea of moving a problem forward in your mind — taking what you've noticed and working it through to a decision.