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5 Whys
A method for identifying root causes by asking 'why?' five times. Typically included in the 8D process.
Related terms
Root Cause Analysis (RCA)
A methodology used to identify the root cause of problems.Ishikawa Diagram (Fishbone Diagram)
A diagram used to identify potential causes of a problem.Pareto Diagram
A technique that helps prioritize improvement actions based on the 80/20 principle.Failure Mode and Effects Analysis (FMEA)
A preventive methodology that identifies and evaluates potential failures in processes, products, or systems before they occur.
Statistical Process Control (SPC)
A technique that uses statistical methods to monitor and control production process quality.Decision Tree
A graphical tool used to identify critical control points (CCPs) in food safety systems.
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