What is the OODA Loop?

The OODA Loop is a decision-making framework that consists of four stages: observation (O), orientation (O), decision (D), and action (A). Developed by military strategist John Boyd, this iterative process helps individuals and organizations make effective decisions in rapidly changing environments by continuously cycling through these stages.

The Basic Idea
Information is today’s hottest commodity—but as with other commodities, its value is unlocked when it is fed as an input to create something else.

Imagine your car as an example of a framework, and gasoline as the input. While the quality of the input is important (lower-grade fuel is worse for your engine than premium-grade fuel), equally important is the quality of the framework used to process the information (a higher-end car provides greater fuel efficiency than a lower-end car). And this extends far beyond technology, when we make a decision—which cereal to buy or which job to accept—information is our input.

Numerous information-processing frameworks exist, and many of them follow some form of “action-learning cycle” (ALC). In a generic ALC, you develop a plan, take action, reflect on that action, and synthesize learning. The lessons learned through the cycle then feed into the plan for the next cycle. The idea of an ALC closely resembles the scientific method of developing a hypothesis, testing that hypothesis, analyzing the results of the test, and reporting the findings, which then inform further scientific studies.

The image shows two cyclical models: the Action Learning Cycle (Plan, Act, Reflect, Learn) and the Scientific Method (Hypothesize, Test, Analyse, Report), both emphasizing iterative learning and improvement through repeated cycles.

Effective information processing is critical to success in a competitive environment. We often refer to the type of information used in these decision-making contexts as “intelligence.” Competitive environments are often characterized as “zero-sum games” wherein one player’s success comes at the expense of another player’s failure. For example, you may have been up for a promotion against your co-worker, a scenario in which only one of you can end up “winning.”

One information-processing framework for “zero-sum game” environments was developed in the 1970s by U.S. Air Force Colonel and military strategist John Boyd. Commonly known as “the OODA Loop” or “the Boyd Cycle,” this information-processing framework is often presented as a simple cycle of four states: Observation, Orientation, Decision, and Action.

The image shows a cyclical model: the Simple OODA Loop (Observation, Orientation, Decision, Action)

Although this simple loop (pictured above) is the most common representation of the OODA Loop, the framework as Boyd envisioned is a more nuanced and iterative process, as shown in the following figure:

This image depicts the OODA Loop, a decision-making process model used primarily in military and strategic contexts. The loop consists of four stages: Observe, Orient, Decide, and Act. Each stage is interconnected

Figure 4: Detailed OODA Loop2

The second representation of the OODA Loop appears more complex than the first, but the basic idea is the same in both representations. When entering into a competition, a competitive actor should first observe their opponent and the surrounding environment. Drawing on both their observations and her repertoire of lessons from past experiences, she should first orient herself by narrowing down the strategic options available to counter her opponent. Once oriented, she can decide on the most promising approach and follow through with deliberate action.

There are two major differences between the two representations of the OODA Loop:

Multiple Feedback Loops
The first difference is that the simple representation is a single loop, whereas the more complex version consists of a collection of loops.

John Boyd didn’t imagine that people transition through each stage of the OODA Loop in consecutive order. Rather, he described an iterative process in which information might travel through multiple feedback loops throughout the course of a decision-making process.

In fact, the notion that there are multiple OODA Loops is a critical feature of Boyd’s theory because it allows for an information processing system to be disrupted, as we will discuss momentarily. Depending on the circumstances of the competitive encounter, a competitor may rely more or less heavily on different sources of information flowing through different feedback loops. If she finds herself in a situation she has experienced before, she may decide to rely on the “implicit guidance and control” (IG&C) of her repertoire of prior experience. If, on the other hand, she finds herself in a relatively unfamiliar situation, she may rely more heavily on the new inputs from real-time observation of her opponent and surroundings. In this way, different feedback loops may be activated under different circumstances.

Orientation at the Core of the Loop
The second major difference between the two representations of the OODA Loop is that the Orientation state is centralized in the more complex representation.

Although some feedback loop configurations skip the “decision” or “action” states, every possible feedback loop flows through the Orientation state. This is not a visual coincidence—Boyd believed that Orientation was central to the information-processing system. A simple definition of Orientation might be “your perception of reality.” As the schematic shows, Boyd understood Orientation to include all the dimensions of the decision-making environment, including various actors’ cultural traditions, genetic heritage, prior experience, and psychophysical ability. As you can see, Orientation is not just about the physical dimensions of the environment, but also the moral and mental dimensions that might give one side an advantage over another.10 In the OODA Loop framework, an individual’s Orientation forms the core of the ‘cognitive engine’ that drives the OODA Loop.

Boyd believed that the key to success in competitive environments lay in a competitor’s ability to “operate inside an opponent’s OODA loops.” This is essentially Boyd’s definition of what we commonly refer to as “getting in your opponent’s head.” Although he never formally described what this would entail, he described the process as the ability to “observe, orient, decide and act more inconspicuously, more quickly, and with more irregularity” than the opponent.2 He believed that this type of action would produce a disorienting effect on the opponent, thereby disrupting the Orientation state of the opponent’s OODA Loop and preventing the opponent from taking effective action.5

“
Be extremely subtle, even to the point of formlessness. Be extremely mysterious, even to the point of soundlessness. Thereby you can be the director of the opponent’s fate.

– Sun Tzu, Military Strategist and Philosopher

Key Terms
Mental model: A “short-cut” framework you use to construct meaning from experience.

Repertoire: The collection of mental models you’ve accumulated throughout your life.

Observation: The stage in the OODA loop where you use your senses to absorb new information.

Orientation: The state in which you process your observations and “repertoire” of experiences to shape your perception of the world.

Decision: The point where you select a course of action from a set of options.

Action: The implementation stage of the chosen course of action.

History
The OODA Loop is an abstract framework, but it originated from the very practical example of fighter pilot combat. As a Colonel in the US Air Force, Boyd sought to understand why his F-86 fighter pilots had fared so well against MiG fighters in the Korean War, which were technically superior aircraft. Through his observations, Colonel Boyd determined that 1) F-86 planes gave pilots a wider field of vision than MiG planes, and 2) the F-86 plane’s hydraulic controls allowed for quicker maneuvering than the MiG plane.1 From these two technical observations, Boyd articulated a general framework explaining how the American forces could gain a competitive advantage over their adversaries in the context of “fast-moving conflict.”7

Ultimately, Boyd attributed the success of the U.S. pilots not just to their quick-moving planes, but the pilots’ rapid ability to make broad observations, orient themselves to varying amounts of uncertainty, decide how to respond, and act in a way to gain a combat advantage. This initial analysis laid the groundwork for the OODA Loop as it is known today.

Boyd laid out his early thinking on observation, orientation, deciding, and action in a 1976 essay titled Destruction and Creation. He went on to share the ideas in a series of public presentations, which he delivered over the course of several years. The concept of an OODA Loop was first introduced in his 1986 presentation Patterns of Conflict; however, his most formal definition of the OODA Loop as a theory was presented in his 1995 presentation The Essence of Winning and Losing.

People
Colonel John Boyd
American Air Force Colonel and military strategist John Boyd was the mind behind the OODA Loop framework. His ideas were inspired by the writing of strategists, scientists, and philosophers, as well as his own research into the sources of success in aerial combat situations. Boyd also developed the Energy Maneuverability Theory (also called the E-M Theory) in the 1960s to model aircraft performance, enabling aircraft designers to predict design trade-offs and optimize combat capabilities.

FAQ
Is the OODA Loop still relevant?
The OODA Loop is still highly relevant today and is often used in both military and non-military applications. For instance, the OODA Loop is instrumental to modern defense systems, especially in the face of new threats like drones and hypersonic weapons.8 Split-second decision-making has become a crucial component of defense, and data-centric OODA Loops—often driven by AI—help make this possible. Automating OODA Loops allows for real-time decision support to rapidly detect, assess, and respond to threats while dynamically adapting to rapidly changing information.

Beyond its use in the armed forces, the OODA Loop is a theory with lots of promising applications outside the military, including in business, healthcare, and technology. For instance, businesses like Dell and Miracle-Gro have engaged in decision-making processes inspired by the OODA Loop.10 We take a deeper dive into some of these modern applications with a couple of real case studies below.

How is the OODA Loop Useful in Project Management?
Mirroring its military applications, the OODA Loop allows project teams to adapt to changing circumstances and respond to uncertain environments by cycling through an iterative decision-making process. Using the OODA loop is ideal in joint planning situations where acting quickly is key to gaining an advantage over a situation, like when competing against other companies, negotiating with potential partners, or responding to rapidly changing market conditions and global events.

Imagine you’re a sales manager deciding whether to extend the timeline for a promotional program.9 During the observation phase, you might gather data about how the program impacted sales, customer experiences, and your advertising budget. Following up with the orientation phase, you would analyze the data you gathered. This could mean contextualizing it within the goals of your organization, comparing it to similar programs, and considering any biases that might be swaying your decision one way or another.

The decision phase is where you apply your analysis to determine the best courses of action among alternative options—like continuing, ending, or changing the promotion. Finally, the action phase is where you actively put your choice into effect. Remember that the OODA Loop encourages you to return to the start to observe the effects of your decision, re-orient yourself, and continue adjusting your decisions as new information becomes available.

How do you get inside an opponent’s OODA Loop?
Getting inside an opponent’s OODA Loop means cycling through your loop at a faster tempo than your competitor to disrupt their decision-making process, forcing them to react to your moves rather than the other way around.10 According to Lieutenant-Colonel Alastair Luft, the key here is not just about acting quickly, but about acting at the right time to effectively alter the decision cycle of your opponent.11

Ideally, you want to break their rhythm by acting when they are most vulnerable to ambiguity or surprise. Targeting your opponent’s orientation phase is central to this goal, as this is where your opponent combines their various observations to form an accurate model of reality. Impeding their ability to perform a successful orientation introduces uncertainty and confusion, rendering their current understanding of the situation outdated and forcing them to start over. This can effectively slow your opponent’s loop and give you the advantage.

While Luft focuses on the military applications of this strategy, it can be valuable in many other competitive situations. Imagine you’re looking to buy a home in a competitive housing market.10 You monitor new listings and price changes (observe) and analyze available options against contextual information like neighborhood characteristics, in-demand home features, and the evolving mortgage market (orient). If you cycle through this process faster than other homebuyers, you can be prepared to make an offer on a promising property at the prime moment (decide and act), like right before the weekend rush. This move could disrupt the decision-making of other buyers who are still in the early process of evaluating the property, ultimately increasing your chance of landing the purchase.

“
The way to win in a battle according to military science is to know the rhythms of the specific opponents, and use rhythms that your opponents do not expect.

— Miyamoto Musashi, Japanese swordsman, artist, and writer

Impacts
Although never formally introduced into the academic literature as a stand-alone theory, the OODA Loop remains an influential idea in a range of disciplines related to information processing systems. It has been particularly influential in the design of information-centric surveillance and command and control structures in military and quasi-military contexts. It provides a useful framework for designing strategies to overcome opponents in competitive environments.

Wide Influence Across Industries
The OODA Loop theory was never rigorously tested using scientific methods and was therefore never published as an academic theory, but it has nonetheless achieved widespread adoption and use in the military and business worlds. The OODA Loop reportedly influenced America’s strategy in the two Gulf Wars and provided the foundation for a number of military theories related to human decision-making, command and control structures, and information warfare.1 John Boyd’s ideas experienced a resurgence in popularity post-9/11 as military and quasi-military organizations sought new strategies for combating crime and terrorism.7

In crafting his OODA Loop theory, Boyd borrowed ideas from a wide range of disciplines, including military strategy, mathematics, physics, and philosophy. His multidisciplinary approach may have helped his ideas permeate into a variety of disciplines. A 2004 study by William Angerman explored the diffusion and evolution of the OODA Loop concept within the academic literature. This study concludes that OODA Loop ideas are prevalent in studies that fall within three thematic areas: information, systems, and processes. Angerman proposes a conceptual framework for thinking about OODA Loops, which is summed up in three main ideas:

Information is the fuel for the OODA Loop
Processing is the activity of the OODA Loop
A System (e.g. a human, a computer) is the host of the OODA Loop
In an effort to informally validate Boyd’s ideas, Angerman compares the OODA Loop to “the unified theory of information,” which is a more rigorously validated theory describing three main forms of information processing: cognition, communication, and cooperation. Angerman finds that the OODA Loop has been used in the literature to describe all three types of system information processing, suggesting that the OODA Loop framework can, at the very least, provide a conceptual framework to complement more rigorously validated theories for understanding system information processing.

The OODA Loop’s Accessible and Intuitive Appeal
Perhaps the theory’s popularity can be attributed to its simplicity and intuitiveness; Strategist Colin Gray commented that ‘the OODA loop may appear too humble to merit categorization as a grand theory, but… It has an elegant simplicity, an extensive domain of applicability, and contains a high quality of insight about strategic essentials.’3 In other words, the OODA Loop is useful because it distills the fundamental principles of competitive strategy and presents them in a widely accessible format.

Controversies
Despite its widespread influence, Boyd’s theory has not been universally accepted. One reason for this is that the OODA Loop is often presented in the oversimplified representation of the four-part loop without the various internal feedback loops that Boyd actually envisioned. At the same time, some critics suggest that the theory could reinforce societal prejudices when used in data-centric surveillance and predictive policing.

Oversimplification and Limited Documentation
Many people who critique Boyd miss the true complexity of the OODA Loop, reducing it to a simple cycle and overlooking the many iterative loops that Boyd actually envisioned. Jim Storr, a British Officer, criticized this oversimplified understanding of the OODA Loop: “Observation, orientation, and action are continuous processes, and decisions are made occasionally in consequence of them. There is no OODA loop. The idea of getting inside the enemy decision cycle is deeply flawed.”4 This misinterpretation of the OODA Loop may be a result of Boyd’s failure to clearly and comprehensively document his ideas in a written document. Aside from the essay Destruction and Creation, the only media through which Boyd disseminated his ideas was his presentations. Some argue that Boyd had to make his conceptual theory somewhat abstract and imprecise in order for it to be broadly applicable.10

While the theory is often misunderstood because it is often presented in an oversimplified fashion, in its full form, the theory can complement more rigorously validated theories to model decision-making in competitive environments.

Biased Historical Foundations
Other critics, like Stephen Robinson, argue that Boyd based his OODA loop on misleading historical testimonies and self-serving memoirs of German generals.14 Because Boyd did not publish formal historical research, much of his work is shaped by anecdotes and selective case studies, opening him up to much criticism from the scientific community. Unfortunately, the other major reason why Boyd’s ideas may not have achieved a broader appeal is that he was a vocal critic of the US Military. This may have led some within the military to dismiss his ideas on the basis of personal differences rather than the merit of the ideas.6

Potential for Reinforcing Bias in Modern Applications
In his 2016 paper Tightening the OODA Loop: Police Militarization, Race, and Algorithmic Surveillance, Jeffrey Vagle suggests that the OODA Loop theory inspired the revolution of information-centric surveillance and policing strategies. When fed with input information based on race or class, the OODA Loop can reinforce bias in automated decision systems built upon ‘predictive policing’ practices. The potential for bias to accumulate through reinforcing feedback loops in information process systems isn’t unique to the OODA Loop. However, the consequences of bias in an OODA Loop applied in a militarized context may be relatively more severe than the consequences of bias in a less conflict-ridden context.

Case Studies
Running the OODA Loop in Team Sports Training
Agility, or the ability to move effectively within the context of team or court sports, plays an incredibly important role in team sports performance.12 Traditionally, agility training took the form of drills and tests to assess an athlete’s ability to perform discrete movement patterns. While this training has evolved to introduce a reactive component—where athletes respond to the moves of their opponents—some critics argue that agility training still fails to prepare athletes for the ever-changing context of the actual game.

Ian Jeffreys, a strength and conditioning professor at the University of South Wales, proposes that the OODA Loop can be valuable for helping athletes react to opponents quickly and disrupt their decision-making process.12 Jeffreys argues that athletes who can run the OODA Loop most effectively can respond more rapidly to the changing environment and therefore stand to gain an advantage. Here’s a summary of Jeffreys’ OODA Loop for athletes in team sports:

Observe: Maintain a position where you can observe everything that’s going on and identify factors that will shape your decisions.
Orient: Adjust your position to manipulate the movements of the opponents and aspects of the environment to get an idea of what is evolving and what needs to be done.
Decide: Come up with the optimal course of action that will maximize the chance of gaining an advantage.
Act: Carry out the decided action and monitor the results.
As you can see, this process is not just reactive in nature but allows athletes to turn uncertainty into opportunity while actively introducing uncertainty for their opponent. In this way, Jeffreys suggests that agility training should focus on helping athletes manage uncertainty by moving through the OODA Loop rapidly while at the same time influencing the OODA Loop of their opponents.

Using the OODA Loop to Support Postoperative Recovery
Nausea and vomiting are among the top four postoperative conditions that patients would rather avoid.13 Postoperative nausea and vomiting (PONV) is a significant issue for surgical outpatients, interrupting oral medication schedules, delaying fluid intake, and increasing the risk of various other conditions like hematomas and wound separation. PONV is a common reason patients are admitted to hospitals following a planned outpatient surgery.

Fortunately, one study found that the OODA Loop could help reduce PONV in high-risk adults receiving outpatient surgery for cancer.13 In the study, researchers implemented a strategy to provide meaningful and relevant feedback to medical providers in a process consistent with Boyd’s theory. For the observation stage, nursing and medical staff reviewed existing literature, discussed the current practices of anesthesia providers, and reviewed the available treatments for PONV. All this information was analyzed in the orientation phase, along with the cultural and professional backgrounds of the care providers—which has been found to play a role in translating research into clinical practice. Orientation also involved considering the specific needs of the oncology patients, including potential medication interactions.

The decision phase was the development of a PONV prevention plan based on an analysis of the available research and collaborative training with anesthesiologists and nurses. After implementing the prevention plan in the action phase, researchers returned to the observation phase. They evaluated each new case of PONV to reorient themselves, made decisions to change protocol based on this new information, and implemented these changes immediately. This cycle continued until the team was able to reach a low and stable rate of PONV.

Related TDL Content
Data-Driven Decision Making
The OODA Loop is all about data-driven decision-making, or making decisions based on an observation of available information and an analysis of how all this information fits together. Check out this article to learn more about how data science is being used to improve everyday decision-making, both on an individual level and at scale.

Markov Decision Processes
The Markov decision process (MDP) is a mathematical decision-making framework that is used when someone has to make a series of decisions in which the outcome is uncertain or partly random. In this article, we explore how the MDP can be valuable for optimizing decisions in uncertain, changing environments like healthcare, financial management, and robotics.

source:
https://thedecisionlab.com/reference-guide/computer-science/the-ooda-loop