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7 QC Tools: . Flowchart Check Sheet Histogram Pareto Cause-and-Effect Scatter Control Chart. Pareto Diagram. Step 1: Decide on problem, type of data, and causes or categories. Step 2: Collect the data. . Step 3: Order the causes or categories. .
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7 QC Tools: • Flowchart • Check Sheet • Histogram • Pareto • Cause-and-Effect • Scatter • Control Chart
Step 1: Decide on problem, type of data, and causes or categories.
Pareto Diagram (Using EXCEL) • Create a table listing the sources of defects in the first column • and in the second column calculate the total number of defects per • source.
Sort the table by the total number of defects in descending order. • In the third column, calculate the cumulative percentage for each row • in the table. • Create a chart with the ChartWizard (custom --- line-column • on two axes).
Step 4: Determine the category for Each listed cause.
Step 4: Determine the category for Each listed cause.
Step 5: Put categories and causes On cause & effect diagram.