Pareto charts can be used in various ways in data analysis. They can be used to identify the most common sources of defects, the highest occurring type of defect, or the most frequent reasons for customer complaints. They can also be used to identify the most significant overall factor in any set of data. For example, in manufacturing, a Pareto chart can highlight the most common sources of production delays. In customer service, a Pareto chart can show the most common reasons for customer dissatisfaction. In addition, Pareto charts can be used to prioritize problem-solving work, to decide where to apply process improvement efforts, and to compare the before-and-after effects of changes.
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