The OODA loop is a four-step decision cycle developed by the military strategist John Boyd: observe what is actually happening, orient by relating it to what you know and have, decide on one action, and act, then immediately return to observing. Its value is speed of repetition, since a good decision made quickly and corrected as you go beats a perfect decision made too late.

John Boyd’s observe-orient-decide-act cycle came from studying fighter pilots, and its strength is repeating faster than the situation changes.

The Loop Is A Cycle, Not A Checklist

John Boyd developed the idea from studying how fighter pilots win air combat: the pilot who completes the cycle of seeing, understanding and acting faster than the opponent forces the opponent to keep reacting to a situation that has already changed. In survival the opponent is the situation itself: fire spreading, water rising, light fading, a group becoming agitated.

Method: The Four Steps

Step 1: Observe What is actually happening right now? Not what you fear or assume. Say what you see and hear: “Smoke from the east side. Two people at the door. No one injured that I can see.”

Step 2: Orient How does this fit what you know? What do you have, what are the threats, what can you do? This is the step that goes wrong most often, because fear, habit and assumptions colour it. Ask yourself: “What would I need to be wrong about for this plan to fail?”

Step 3: Decide Pick one course of action. Any workable course of action is better than none.

Step 4: Act Do it. Then go straight back to Observe: did it change anything?

Running It While Frightened

  • Say the steps aloud or in your head: “Observe, orient, decide, act.”
  • Make the first loop small. The first action can be to get to a safer spot so you can think.
  • Expect to loop several times in a minute when events are moving, and slowly when they are not.
  • When another person is helping, one person can call the observation while the other acts.

Common Mistakes

  • Stalling at Orient — endless analysis. Use Three-Option Rule and Time-Boxing Choices.
  • Skipping Observe — acting on what you assumed. Look first.
  • Never going back to Observe — the plan that suited the situation five minutes ago may not suit it now.

What’s Next