If all men by nature desire to know, then they desire most of all the greatest knowledge of science. Duns Scotus
Download my new presentation, The Essence of Winning and Losing — Deconstructed. Or, where did the OODA loop come from, and what is it supposed to do? 505KB PDF
A pencil draft of the OODA loop arrived in the mail one day in early 1995 with a note from John Boyd asking me to turn it into a computer graphic. We went back and forth several times — I’d mail him updates, and he’d call up and want to talk. As I recall, the big bone of contention was the shapes of the arrows within the Orient block: which should be solid and which dashed, and in which directions the arrows should point.
He was particularly worried about the arrows from new information and previous experiences into genetic heritage. In the end, though, he decided not make any distinctions and just connect each of the bubbles to each of the others with solid arrows. Over the next several months, he added three more slides explaining what he wanted the OODA “loop” to do. Again, lots of back-and-forth.
By January 1996, Boyd had finished his revisions to The Essence of Winning and Losing. It was his last work, significant because in it he defines for the first time on paper what he meant by an OODA loop. Although he had been using the term since his first major presentation, Patterns of Conflict (created 1977 – 1986), It was virtually always combined with the preposition “inside,” in phrases like “operating inside their OODA loops.”
In fact, in the 319 slides that he created before TEoWL, he used the phrase “OODA loop” by itself, whether abbreviated or spelled out, on only 5 pages. On none of these did he actually define it
If it meant “Observe, then orient, then decide, then act,” there would be no need for further explanation, other than defining the terms. The fact that we’re talking about TEoWL suggests Boyd had something else in mind.
To guide us through Boyd’s process of constructing the loop, TEoWL begins with the concept of an “implicit repertoire.” These are the practices we need to “make intuitive within ourselves” as Boyd put it, in order to deal with those urgent and unpredictable requirements that the situation, including opponents in a conflict, throws at us. TEoWL asks where this set of practices comes from and how we add to it as circumstances change.
Put another way: From the infinite set of possible practices that we might create and train for, and given that there are only 24 hours in a day, how do we select? That is the question at the heart of TEoWL, and the answer he came up with is an OODA “loop.”
A few points to keep in mind:
- The purpose of the “OODA loop ‘sketch’” on page 3 is to “clarify” a set of statements he makes on the first page of the presentation and the interactions among them. These statements all address how we manage our implicit repertoire.
- He called it a “sketch.” To use his snowmobile analogy from Strategic Game (1987), you might think of it as Model 1.
- However, we know from research into his files at the Library of Marine Corps University, he created many prototypes before he settled on this particular one. My personal guess is that if he had lived (he died on March 9, 1997), there would have been additional releases.
What I have done is to break down the elements of TEoWL into what I hope are digestible portions in a largely graphical format. My primary audience is the collection of people who are adapting Boyd’s sketch to serve their various purposes. I thought it might be useful for them to briefly review Boyd’s derivation of the “loop.” In other words, it is for those philosophical engineers who are developing Models 2, 3, etc., which is, I am sure, what Boyd would be doing if he were alive today.
This presentation, along with all of Boyd’s presentations and lots of other stuff, are all available from our Articles page.