The proposed 4 M approach takes into account all the most important aspects involved in the manual assembly: Method, Machine, Man and Material. The final goal is to provide a means for the concurrent improvement of the product design, the workstation ergonomics, and the assembly tasks. Man (in the generic sense), Machine, Material, Method, Measurement, Mother Nature are the categories/the components of variation that contribute to the production of some desired result. Use: There may be thousands of factors that directly affect or interact with each other to affect the outcome of some desired result(s) of a process. Man Wrong product pull from inventory The operator pull the product by part number following the process. This is not the root cause FALSE Man Lack of awareness Retraining is conducted half yearly. This is not the root cause FALSE Method Wrong label on the product The label is the correct part number (1234-5678), but the physical part is 1234-5566. Materials needed: marking pens and flipchart or whiteboard. Agree on a problem statement (effect). Write it at the center right of the flipchart or whiteboard. Draw a box around it and draw a horizontal arrow running to it. Brainstorm the major categories of causes of the problem. If this is difficult use generic headings: Methods Vay Tiền Nhanh Chỉ Cần Cmnd.

machine material man method