Question 1 - Contrast the significance of the term lead time in the traditional EOQ context and in an MRP system. In the traditional context‚ lead time is fixed—either as a discrete time or as a probability distribution. Such lead time constancy or variation is outside of the inventory model. Lead time in an MRP system is assumed to be a variable. While specific lead times are stated for planning purposes‚ these times may be speeded up or delayed as conditions warrant. Indeed‚ it is this ability
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estimated importance. ’A’ items are very important for an organization. Because of the high value of these ’A’ items‚ frequent value analysis is required. In addition to that‚ an organization needs to choose an appropriate order pattern (e.g. ‘Just- in- time’) to avoid excess capacity. ’B’ items are important‚ but of course less important than ’A’ items and more important than ’C’ items. Therefore ’B’ items are intergroup items. ’C’ items are marginally important. Advantages and Disadvantages of ABC Analysis
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ECONOMIC ORDER QUANTITY (EOQ) MODEL The economic order quantity (EOQ) is the order quantity that minimizes total holding and ordering costs for the year. Even if all the assumptions don’t hold exactly‚ the EOQ gives us a good indication of whether or not current order quantities are reasonable. What is the EOQ Model? Cost Minimizing “Q” Assumptions: Relatively uniform & known demand rate Fixed item cost Fixed ordering and holding cost Constant lead time (Of course‚ these assumptions don’t always
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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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Time context June 1976 * A CyGy garment was established by Guia Collantes and Carmela Santos. September 1976 * The cousin’s started researched‚ copied‚ revised and altered designs from magazines‚ stores and television and they finished their first fashion collection. 1977 * Cy Gy garment got their first expansion acquiring six industrial machines and hiring more sewers. By end of 1991 * Their employee was 25 workers. * Their manufacturing has with 12 subcontractors‚ that
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students. Applied to 2. Relationship with the theme Supply Chain Management concerns all the movements of products and the use of resources within a company. It deals with planning and decision making. For the long term (aggregate planning level) as well as the short term you must be able to identify‚ plan and measure input and output in any planning process within a company. Planning can be used for all kinds of resources inside or outside a company. 3. Objectives The student will be
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Q 1. EOQ and MOQ are supplier-related terms‚ where EOQ shows the costs a supplier has that are associated with purchasing goods and MOQ shows the amount of goods required for purchase to pass on to the supplier’s customers. EOQ - Economic Order Quantity EOQ is basically an equation used to determine inventory stock. It figures the ideal quantity to order that a particular supplier should maintain in warehouse‚ determined by a consistent cost for production‚ demand‚ etc
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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 to deliver products and services Operations strategy Design
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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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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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