OODA loop

Observe, Orient, Decide, Act.

It takes the basic ways we think, decide, and operate in the world — ways that often get confused and jumbled in the face of conflict and confusion — and codifies and organizes them into a strategic, effective system that can allow you to thrive in the heat of battle.

It is a learning system, a method for dealing with uncertainty, and a strategy for winning head-to-head contests and competitions.

https://www.artofmanliness.com/articles/ooda-loop/