Understanding John Boyd's OODA Loop
The OODA loop (Observe, Orient, Decide, Act) is a model of how people and organisations make decisions under pressure. It was developed by John Boyd, a US Air Force fighter pilot and colonel who became an influential military strategist. Its central idea is that orientation, the way you make sense of what you see, shapes everything else. It is also one of the three parts of Wardley's Strategy Cycle.
Who John Boyd Was
John Boyd was born in Erie, Pennsylvania, on 23 January 1927, and died in 1997. He flew fighters for the US Air Force and retired as a colonel in 1975. He spent the rest of his career developing ideas about conflict and decision-making, which he shared as slide briefings rather than books.
1953 – Korean War
Boyd flew F-86 Sabres in Korea in the final months of the war. Comparing the F-86 with the MiG-15 later shaped his thinking on how quickly a pilot can switch from one manoeuvre to the next.
1976 – Destruction and Creation
After retiring, Boyd wrote Destruction and Creation, a short paper on how we break down and rebuild our mental models. He also began the briefing that became Patterns of Conflict.
1987 – A Discourse on Winning and Losing
Boyd gathered his briefings, including Patterns of Conflict and Organic Design for Command and Control, into a single collection. His ideas spread through these briefings, which he gave many times.
1995 – The Essence of Winning and Losing
The OODA loop diagram most people know, with orientation at its centre, comes from this short briefing.
The Four Parts of the Loop
The four letters are often drawn as a simple circle, but Boyd's own diagram is a set of linked loops. The parts run continuously and influence each other, rather than happening as strict steps in turn.
Observe
Take in what is happening outside: changes in the situation, what others are doing, and the results of your own actions.
Orient
Make sense of what you observe. Boyd listed the influences on this: cultural traditions, genetic heritage, previous experiences, new information, and the analysis and synthesis that combine them.
Decide
Choose a course of action. Boyd labelled this a hypothesis: your best current guess, to be tested.
Act
Carry out the decision. Acting tests the hypothesis, and the results feed back into what you observe next.
Orientation Is Central
Boyd called orientation the schwerpunkt, or focal point, of the loop. Your mental models decide what you notice, which options you consider, and how you act. Treating OODA as four equal steps in a fixed order misses this.
Implicit Guidance and Control
In Boyd's diagram, orientation can guide action directly, without a separate, deliberate decision. With well-developed orientation, experienced people can act quickly and appropriately without stopping to think it through.
Updating Your Models
New information only helps if you are willing to change your mental models. Destruction and Creation is about exactly this: breaking old models apart and building better ones.
Feedback Throughout
Decisions and actions change the situation, and orientation shapes what you observe, so feedback runs between every part. The loop never stops.
Tempo: Getting Inside the Opponent's Loop
Boyd's point was not simply to cycle faster. If you can orient and act more quickly than an opponent, and in ways they don't expect, their picture of the situation keeps falling out of date, and they end up reacting to circumstances that have already changed. His ideas shaped the US Marine Corps' approach to manoeuvre warfare, and the same thinking applies to competing in a fast-changing market.
The OODA Loop in Wardley's Strategy Cycle
Simon Wardley built his Strategy Cycle from three parts: Boyd's OODA loop, Sun Tzu's five factors (purpose, landscape, climate, doctrine, and leadership), and the two whys (the why of purpose and the why of movement). A Wardley Map supports observing and orienting: it shows your landscape and how it is changing, so your decisions rest on a shared picture rather than on unspoken assumptions. Like the OODA loop, the cycle runs continuously.
Using the OODA Loop
In Strategy
Watch your market, customers, and competitors; map what you see; decide; act; then look at what changed. Short cycles suit a fast-moving landscape better than long planning rounds.
In Agile Teams
Agile teams already work in short cycles with regular feedback. The OODA loop adds a reminder to keep checking the assumptions behind the work, not just the work itself.
In Leadership
Boyd stressed trust and a shared understanding of intent, so that people can act without waiting for detailed orders. Leaders help most by building that shared orientation.
Watching for Bias
Orientation is where bias does its damage. Confirmation bias, anchoring on the first information you receive, and giving too much weight to vivid events all distort what you notice and decide.
Related
Sources
- John Boyd, A Discourse on Winning and Losing (1987).
- John Boyd, The Essence of Winning and Losing (1995).