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did it work? 3. Check 4. Institutionalize the change or abandon or do it again. 4. Act Process Flow Chart Customer drops off car Mechanic makes diagnosis Discuss work with customer Repair Authorized Visible to customer Not visible to customer Repair Not Authorized Customer departs with car Parts available? Perform Work Y N Order Parts Pass Inspection? Perform Corrected Work N Completed Repair Notify Customer Collect Money Y 17 Cause Effect Diagram Does not meet specs Man Machine Material Method Incorrect Measurement Bad Cleanup Bad Repair Temperature Control Jars Mislabeled Damaged Product Not Maintained Not Clear 12 Pareto Analysis 80% of the problems may be attributed to 20% of the causes. Color Frequency Scratch Porosity Chip Oth