Allows you to create a Pareto Chart using summarized data. You can use the Pareto chart to evaluate which inputs or categories cause the greatest pain or have the greatest impact on a process output.
|When to Use||Purpose|
|Pre-project||Assist in project selection by identifying defects that cause the most customer pain, have the highest COPQ, etc.|
|Mid-project||Assist in evaluating inputs and setting aside unmportant ones. For example, you can compare the relative frequencies of a problem occurring as a result of different inputs to determine which inputs are likely to be important. Or you could compare the frequencies of the problem at various levels of an input variable to determine whether changing the input has any effect. Inputs eliminated this way are likely to be of little importance to the project.|
|End of project||Report on the relative frequency or cost of the defect after improvements have been made.|
Your data must be summarized. Each category (defect) name recorded in one column should be summarized with a count or cost value in another column. If your data are raw (the name of the defect is entered into the column every time it occurs), use the Pareto Chart Worksheet - Raw form.