From the course: Lean Six Sigma: Analyze, Improve, and Control Tools

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Cause–effect diagrams

Cause–effect diagrams

From the course: Lean Six Sigma: Analyze, Improve, and Control Tools

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Cause–effect diagrams

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- A cause effect diagram is simply a diagram to organize the list of potential causes of a particular effect. The key word here is potential, not proven yet. The effect that you base them on, should be as specific as possible. If already measured problem a earlier in the measure phase, you've created charts and the data has already shown where the big problem areas are. For example, if a Pareto chart of world hunger shows that country A has the greatest percentage of undernourished citizens, then we want to focus our brainstorming on country A. Brainstorming on world hunger is a waste of time, when data shows that country A accounts for 80% of world hunger. So we want to focus our brainstorming on country A. To begin creating a cause-effect diagram you need to figure out what will go into the effect box. The answer to this question comes from the charts and graphs your team created in the measure phase. If data are categorical, or in every day language, count data, then a Pareto chart…

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