material requirements planning

[mə′tir·ē·əl ri′kwīr·məns ‚plan·iŋ]

(industrial engineering)

A formal computerized approach to inventory planning, manufacturing scheduling, supplier scheduling, and overall corporate planning. Abbreviated MRP.

Material Requirements Planning

(application)

(MRP) A system for effectively managing material requirements in a manufacturing process.

Information systems have long been an important part of the manufacturing environment. In the 1960s, manufacturers developed Material Requirements Planning (MRP). According to the American Production and Inventory Control Society, Inc. (APICS), MRP is a set of techniques that uses bill of material data, inventory data, and the master production schedule to calculate requirements for materials. It makes recommendations to reorder materials. Furthermore, because it is time-phased, it makes recommendations to reschedule open orders when due dates and need dates are not in phase. Time-phased MRP begins with the items listed on the Master Production Schedule and determines the quantity of all components and materials required to fabricate those items and the date that the components and material are required. Time-phased MRP is accomplished by exploding the bill of material, adjusting for inventory quantities on hand or on order and offsetting the net requirements by the appropriate lead times.

See also Manufacturer Resource Planning.

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References in periodicals archive

Among their topics are the importance of flow, material requirements planning in the new normal, supply order generation and execution for the new normal, strategic inventory positioning, buffer adjustments, the impact of demand driven material requirements planning on the operational environment, metrics and analytics, the demand driven organization, and implications for technology.

Demand Driven Material Requirements Planning (DDMRP)

Against the weakness of ERP system, some papers propose methods to improve the coordination between material requirements planning and capacity requirements planning, and to optimize the planning.

Multi-objective integrated production planning model and simulation constrained doubly by resources and materials

Chad Smith is the coauthor of the third edition of Orlicky's Material Requirements Planning and the coauthor of Demand Driven Performance--Using Smart Metrics.

Becoming Demand Driven: how to change from push and promote to position and pull

The new software, which supports 300 to 400 items related to material requirements planning, has significantly reduced the purchase requisition cycle and eliminated accounting at individual store locations.

Digging out Inefficiencies

Material requirements planning (MRP) is a production planning and inventory control system used to manage manufacturing processes (Reid, 2002).

Windmill farm assembly process using a MRP model

Tee added that focus was placed on rapid transfer of documentation into the material requirements planning system and production equipment.

Minimizing cost and time in offshore sourcing: when developing an offshore strategy, key elements can make the difference between success and failure

"Understanding the whats and whys of ERP and Material Requirements Planning will make us better at managing our programs and achieving more reliable delivery schedules in the Logistics Modernization Program," he said.

Tobyhanna Army Depot (Oct. 24, 2007): Tobyhanna employees attend first Certified in Production and Inventory Management program

Millennium Pressed Metal, which has been assisted by Business Link West Midlands, is now looking to make the most of this order boom by increasing its efficiency through the implementation of a new Trojan MRP (Material Requirements Planning) system.

Enterprising Anna shows her mettle

Chapter 7 explores the evolution from legacy material requirements planning systems to the development of enterprise resource planning systems.

Principles of Supply Chain Management: a Balanced Approach

For example, the map in Figure 3 shows that the supply chain is driven by a classical Material Requirements Planning (MRP) system, with monthly planning buckets.

Taming the aerospace supply chain--a case study in organizational integration

Inventory and production data stored in Material Requirements Planning (MRP) systems can also be considered critical if loss of this data causes a severe factory shutdown.

It's a data-intensive world: protect your data with tape

* 15 -- Material Requirements Planning & Bills of Material

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