Glossary · MRP

Material requirements planning

Calculating what materials to buy or make, and when, to meet the plan.

Technical definition

A method that explodes the master production schedule through bills of material to time-phased material and component requirements.

Manufacturing example

MRP determines that meeting next month's orders requires ordering film and adhesive by a certain date.

Common misconception

MRP is not scheduling; it plans materials but typically assumes infinite capacity for timing.

Why it matters operationally

Material availability is a hard constraint — a schedule is not executable without it.

Related terms

Put material requirements planning to work

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