The concrete contents of 4M management mainly include manpower, machinery, materials and methods (technology); In common use, environment is added to form five common elements: people, machines, materials, law and environment.

1. Methods and technologies: operating conditions and surrounding environmental conditions;

2. Manpower: personnel directly engaged in operations on site;

3. Mechanical equipment: fixtures, checking tools, measuring tools, molds, etc.

4. Materials: raw materials, semi-finished products and parts sent from the previous process.

Extended data:

The role of quality management system:

Quality management system combines resources and processes, carries out system management by process management, and selects several system elements for combination according to the characteristics of enterprises.

Generally, it includes process components related to management activities, resource supply, product realization and measurement, analysis and improvement activities, which can be understood as covering the requirements of planning, implementing, monitoring, correcting and improving activities in the whole process of determining customer demand, design and development, production, inspection, sales and delivery, and generally becomes the requirements of internal quality management of organizations in a documented way.

Baidu encyclopedia -4M management

Baidu Encyclopedia-Quality Management System