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The other interesting fact around MECE is how it is pronounced. But how does one go about figuring out one’s thinking in advance?” “People were starting to write without working out their thinking in advance. “The problem was the thinking, not the language,” (Minto) says. In her book, The Pyramid Principle: Logic in Writing and Thinking, she says that the advice people were getting was to “write more clearly.” She is notable for being the first female MBA that McKinsey hired and even more importantly, creating a framework for thinking and problem solving that most modern consulting firms adopted and use to this day.Īfter being hired at McKinsey, she noticed that people around her struggled to write clearly and simply. The concept of MECE was brought into the world by Barbara Minto, who worked at McKinsey in the 1960s and 1970s.
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Going back to the six-sided dice example, the set is mutually exclusive AND collectively exhaustive.Ĭombining these two elements will enable you to take a large amount of information and simplify it into multiple groups of separate and distinct ideas. Second, “collectively exhaustive” means that the set of ideas is inclusive of all possible options. When applied to information, mutually exclusive ideas would be distinctly separate and not overlapping. For example, if you roll a six-sided die, the outcomes of a six or a three are mutually exclusive. First, “mutually exclusive” is a concept from probability theory that says two events cannot occur at the same time.
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Put simply, it is a principle that will help you sharpen your thinking and simplify complex ideas into something that can be easily understood. MECE is an acronym for the phrase Mutually Exclusive, Collectively Exhaustive. One of the most foundational ideas in consulting problem solving is “MECE.” If you have been around current or former strategy consultants, you’ve probably heard someone say this, typically pronounced “mee-see.”