Root Cause Analysis ( RCA )

RCA comprises the techniques and tools to uncover the underlying causes of problems. 

• Most common is 5-Whys?
• When you have a vast amount of data:
• Do a 80-20 Pareto chart to identify the 20% causing the defects.
• Do a 5-Why on the 20% based on the defect categories.
• Fish Bone / Ishikawa Diagrams

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