63884-Ch25 - Production Control-3e-S 10-29 29/06 Chapter 25...

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Production Control-3e-S 10-29, 29/06, 06/05/07 Chapter 25 PRODUCTION PLANNING AND CONTROL SYSTEMS REVIEW QUESTIONS 25.1 What is production planning? Answer : As defined in the text, production planning consists of (1) deciding which products to make, how many of each, and when they should be completed; (2) scheduling the delivery and/or production of the parts and products; and (3) planning the manpower and equipment resources needed to accomplish the production plan. 25.2 Name three of the four activities within the scope of production planning? Answer : The four activities identified in the text are (1) aggregate production planning, (2) master production planning, resulting in the master production schedule, (3) material requirements planning, and (4) capacity planning. 25.3 What is production control? Answer : As defined in the text, production control consists of determining whether the necessary resources to implement the production plan have been provided, and if not, it attempts to take corrective action to address the deficiencies. 25.4 What is the difference between the aggregate production plan and the master production schedule? Answer : The aggregate production plan indicates the output levels for the major product lines of the company, both products that are currently being produced and future products. The master production schedule takes the product line quantities listed in the aggregate plan and converts them into a very specific schedule of individual products - a list of the products to be manufactured, when they should be completed and delivered, and in what quantities. 25.5 What is material requirements planning (MRP)? Answer : As defined in the text, material requirements planning (MRP) is a computational technique that converts the master production schedule for end products into a detailed schedule for the raw materials and components used in the end products. The detailed schedule identifies the quantities of each raw material and component item. It also indicates when each item must be ordered and delivered to meet the master schedule for final products. 25.6 What is the difference between independent demand and dependent demand? Answer : Independent demand means that demand for a product is unrelated to demand for other items. Final products are examples of items whose demand is independent. Independent demand patterns are usually forecasted. Dependent demand means that demand for the item is directly related to the demand for some other item, usually a final product, so that dependency derives from the fact that the item is a component of the other product. Not only component parts but also the raw materials and subassemblies used in the final product are examples of items subject to dependent demand. 25.7 What are the three main inputs to the MRP processor?
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