3. MATERIALS REQUIREMENT PLANNING (MRP) Kruger & Ramphal (2009: 232) defines Material requirements planning (MRP) as “a computer-based information system used to schedule and order dependent-demand inventories.” Independent demand is demand for final products whereas dependent demand is demand for items that are subassemblies or component parts to be used in production of finished goods. In simpler terms‚ MRP is a production planning process that begins with the demand for finished products‚ and
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where they should happen‚ who should be doing them‚ how much capacity will be needed and so on. This is what enterprise resource planning (ERP) does (see Figure 14.1). It grew out of a set of calculations known as material requirements planning (MRP)‚ which is also described in this chapter. Topic covered in this chapter Supply chain planning and control The market requires... specified time‚ quantity and quality of products and services The operation supplies... the informational ability
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案例：MRP，ValentinCase：Valentin Valentin Inc. is a company who uses MRP to organize its production. The lot-sizing technique they chose for all references is lot-for-lot. They provide part of the product tree structure for products A and B (the figures shown indicate the number of component required to produce a product of the next level). Product Y(2) Product B A Z(3) Y(1) Z(1) W(2) The components Y and W are used exclusively in the production of products A and B. They
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REQUIREMENT PLANNING Introduction * MRP is a simple system of calculating arithmetically the requirements of the input materials at different points of time based on actual production plan. * MRP can also be defined as a planning and scheduling system to meet time-phased materials requirements for production operations. MRP Objectives * Reduction in Inventory Cost: By providing the right quantity of material at right time to meet master production schedule‚ MRP tries to avoid the cost of excessive
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MRP is a computer based system which is designed to manage the timing and ordering of the products demanded. The main function of MRP is elementary scheduling‚ inventory control and bill of material processing. Low inventory levels of the organizations are maintained with the help of MRP. It is majorly used for the planning of purchasing‚ manufacturing and delivering activities. The daily problem faced by the manufacturing organizations is that customers want products to be available in short time
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Gershwin MRP Overview • Primary source: Factory Physics by Hopp and Spearman. • Basic idea: Once the final due date for a product is known‚ and the time required for each production step is known‚ then intermediate due dates and material requirement times can be determined. • Original goal: To determine when material for production is required. MRP Overview Demand Demand • ... from outside the system is independent demand. • ... for components or raw material is dependent demand. Before MRP‚ buyers
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Integrated Management Systems: ERP – MRP Evolution… ERP philosophy has evolved from MRPII philosophy. MRPII philosophy evolved from MRP philosophy. It is important to understand the difference between each term. Effective ERP requires that integrated management processes extend horizontally across the company‚ including product development‚ sales‚ marketing‚ manufacturing‚ and finance. It must extend vertically throughout the company’s supply chain to include the acquisition of raw materials‚ suppliers
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Vol. 21‚ No. 1‚ p. 3-39. Harvey‚ D. F.‚ & Brown‚ D. R. (2001): The changing face of Toys at Mattel‚ Inc.’: An experiential approach to organization development. Prentice Hall Press. pp.161- 162 Heathfield‚ S Hellriegel‚ D.‚ & Slocum‚ J. M. (2007): ‘ Guiding Organizational Change’: Organizational Behavior. Cengage Learning Press. pp. 457-458. Kehope‚ D. (2007): Leading and Managing Change. McGraw-Hill Australia Press. Kotter‚ J. P. (2000): Leading Change:Why Transformation Efforts Fail. Harvard Business
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well as the unsuitability of the parameters fixed by the system‚ led MRP (Material Requirements Planning) to evolve into a new concept : Manufacturing Resource Planning or MRP2[1] Material Requirements Planning (MRP) is a software based production planning and inventory control system used to manage manufacturing processes. Although it is not common nowadays‚ it is possible to conduct MRP by hand as well. An MRP system is intended to simultaneously meet three objectives: • Ensure
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inventory levels. MRP techniques focus on optimizing inventory. MRP techniques are used to explode bills of material‚ to calculate net material requirements and plan future production. This report focuses on MRP and MRPII systems.MRPII stands for Manufacturing Resource Planning and represents an extension of MRP.MRPII points to computer based planning and scheduling designed to improve management’scontrol of manufacturing and its support functions. MRPII maps an extension of MRP tocapture all manufacturing
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