The 4Ms Model to Name Ishikawa Main Causes

The 4Ms Model to Name Ishikawa Main Causes

I checked the internet to find out who and when used the original 4Ms as names for the main cause categories (branches). Unfortunatelly I could not find it, even in papers referring to Ishikawa's book from 1982.
Maybe you know when and where this 4M first appeared?

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		1 ANUJ KUMAR SHRIVASTAVA Manager, India
	This Technique is Referred as 4M Technique the Fishbone is also referred to as the 4M model. The 4 M's are as follows: - Manpower - Machinery - Methods - Materials The origin is as not known very clearly but its appearance is understandable because when you're looking at a production system you usually find mistakes broadly in the above 4 categories, even if you proceed in detail you may find other causes. But you will notice also they tend to fall in either of the 4 categories. So we consider them as a base. But with times people have modified it according to their convenience.

		0 Jaap de Jonge Editor, Netherlands
	Variants of 4Ms Model @ANUJ KUMAR SHRIVASTAVA: Excellent answer, remember 4M is just a template, a model that is easy to r... Sign up