What is 4M and what is retroactive & prospective

Question

Accepted Answer

4M is a methodology used in production engineering. Retroactive refers to actions taken after an event, while prospective refers to actions taken before an event.

4M is a methodology used in production engineering that stands for Man, Machine, Material, and Method.
Man refers to the human resources involved in the production process.
Machine refers to the equipment and tools used in production.
Material refers to the raw materials and components used in production.
Method refers to the processes and procedures followed in production.
Retroactive actions are taken after an event has occurred, such as implementing corrective measures after identifying a production issue.
Prospective actions are taken before an event occurs, such as conducting risk assessments and implementing preventive measures.
Example of retroactive action: Analyzing production data to identify bottlenecks and implementing process improvements.
Example of prospective action: Conducting a feasibility study before introducing a new production line.

What is 4M and what is retroactive & prospective

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