Apr 28, 2005. #2. tammy johnson said: 4M'S 1. Man - change of operators 2. Machine - new, updating or improving facility 3.Method - changes in process i.e. operations, working conditions, 4. Material - raw material, parts change, packing change or auxiliaries. What are your processes? - 4M group; Man, Machine, Material, Method Why (the contributing factor) happened? Environment. Human . Hard (machine/equipment) Soft (System and methodology) 7 . Example of grouping of causes • Human: knowledge, skills health conditions, physical conditions etc. lZjbS.

machine material man method