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Solving a Lean vs. a Six Sigma Problem

Hint: The problem statement is never the problem

Harish Jose
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Harish’s Notebook

Tue, 06/18/2019 - 12:02
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I must confess up front that the title of this column is misleading. Similar to the Spoon Boy in the movie, The Matrix, I will say, “There is no lean problem or a Six Sigma problem. All these problems are our mental constructs of a perceived phenomenon.”

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A problem statement is a model of the actual phenomenon that we believe is the problem. The problem statement is never the problem! It is a representation of the problem. We form the problem statement based on our vantage point, our mental models, and biases. Such a constructed problem statement is thus incomplete and sometimes incorrect. We don’t always ask for the problem statement to be reframed from the stakeholder’s viewpoint.

A problem statement is an abstraction based on our understanding. Its usefulness lies in the abstraction. A good abstraction ignores and omits unwanted details, while a poor abstraction retains them, or worse, omits valid details. Our own cognitive background hinders our ability to frame the true nature of the problem.

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