The 4M is a method that allows to identify and group causes that impact to a specific effect. 4M categories (Material, Method, Machine, Man) are often used in the Cause-Effect Diagram created by Kaoru Ishikawa [9]. It is a good, intermediate tool of problem analysis.

What are 4 M's?

Money, material, machine and manpower are the Four Ms, the traditional framework for viewing the resources available to a business, which can be useful when designing a business plan. Identifying the resource needs is generally considered in business, a task for those in management.

What is 4M in industry?

4M categories (Material, Method, Machine, Man) are often used in the Cause-Effect Diagram created by Kaoru Ishikawa [9]. It is a good, intermediate tool of problem analysis. … By the use of these methods it could be analyse any production, service or management problem. They are tools used in Lean and WCM concepts [15].