---------- *ISHIKAWA4* ---------- The 4 Usual "M" Components in the Ishikawa Cause-and-Effect Diagram 1. Material Biased High or Low in Size, Content, etc. Too Variable 2. Machine Out of Calibration Worn Parts 3. Man Lack of Training Lack of Information Not Enough Time Carelessness 4. Method/Process Wrong Set-Up Not Enough Time Improper Lubrication Source--Quality Progress, April 1987.