Fishbone — manufacturing defect rate
Six Sigma framing for a QA escape on the line.
Make it your own.
title "Why is the defect rate trending up?"
problem "Defect rate > 3 %"
category "Man"
cause "New shift hires"
cause "Fatigue at hour 6"
category "Machine"
cause "Calibration drift"
cause "Tool wear"
category "Method"
cause "Outdated SOP"
cause "No torque spec"
category "Material"
cause "Supplier batch B"
cause "Humid stock"
category "Measurement"
cause "Caliper drift"
cause "Sampling bias"
category "Mother Nature"
cause "Plant temperature swing"