Tools for Process Improvement Managing for Quality Dr. Tibben-Lembke

Pareto Chart - ranked histogram  Invented by Joseph Juran  Beer defects

Wilfredo Pareto  Italian Economist  “80/20” rule: 80% of the wealth is controlled by 20% of the people Cours d'économie politique (1896-7)  80/20 rule believed to apply much more widely  “Pareto Optimality” – not possible to make anyone better off (in his own estimation) without making someone else worse off

Cause & Effect Diagram Example Too Many Defects

Cause & Effect Diagram Example MethodManpower Material Machinery Main Cause Too Many Defects

Cause & Effect Diagram Example MethodManpower Material Machinery Too Many Defects Tired Lathe Wood Steel Drill

Cause & Effect Diagram Example MethodManpower Material Machinery Too Many Defects Tired Not maintained Lathe Wood Steel Drill Slow Over Time Not dried

Control Chart Example UCL LCL

Multiple Defects Check Sheet

Location Check Sheet

Correlation Experimental Advertising Method