The limitations of a quality control charts:
The quality control chart is based on the research of Villefredo Pareto. He found that approximately 80 percent of all wealth of Italian cities he researched was held by only 20 percent of the families. The Pareto principle has been found to apply in other areas, from economics to quality control. Pareto charts have several disadvantages, however.
Easy to Make but Difficult to Troubleshoot
Based on the Pareto principle, any process improvement should focus on the 20 percent of issues that cause the majority of problems in order to have the greatest impact. However, one of the disadvantages of Pareto charts is that they provide no insight on the root causes. For example, a Pareto chart will demonstrate that half of all problems occur in shipping and receiving. Failure Modes Effect Analysis, Statistical Process Control charts, run charts and cause-and-effect charts are needed to determine the most basic reasons that the major issues identified by the Pareto chart are occurring.
Multiple Pareto Charts May Be Needed
Pareto charts can show where the major problems are occurring.
The quality control chart is based on the research of Villefredo Pareto. He found that approximately 80 percent of all wealth of Italian cities he researched was held by only 20 percent of the families. The Pareto principle has been found to apply in other areas, from economics to quality control. Pareto charts have several disadvantages, however.
Easy to Make but Difficult to Troubleshoot
Based on the Pareto principle, any process improvement should focus on the 20 percent of issues that cause the majority of problems in order to have the greatest impact. However, one of the disadvantages of Pareto charts is that they provide no insight on the root causes. For example, a Pareto chart will demonstrate that half of all problems occur in shipping and receiving. Failure Modes Effect Analysis, Statistical Process Control charts, run charts and cause-and-effect charts are needed to determine the most basic reasons that the major issues identified by the Pareto chart are occurring.
Multiple Pareto Charts May Be Needed
Pareto charts can show where the major problems are occurring.
What are the limitations of a quality control charts?
![What are the limitations of a quality control charts?]()
Reviewed by enakta13
on
January 29, 2013
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