A cause-and-effect analysis-also called an Pareto diagram after the creator of the technique or a fishbone diagram based on what the final diagram resembles-is used when a problem or issue has been discovered and you need to determine its root cause so that the most appropriate actions can be taken.

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A cause-and-effect analysis is indeed used to determine the root cause of a problem, but it is commonly referred to as a fishbone diagram or Ishikawa diagram, after its creator Kaoru Ishikawa, not a Pareto diagram. A Pareto diagram, or Pareto chart, is used to identify the most significant factors contributing to a problem and is based on the Pareto principle.

A Cause-And-Effect Analysis-Also Called an Pareto Diagram After the Creator