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20 Cards in this Set
- Front
- Back
define materials requirment planning
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computer bases info system that translates the finished product requirements of the master schedule into time-phased requirements for subassemblies.
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Independant demand
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items must be carried on a continual basis
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Dependant demand
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Demand for items are lumpy, items need only be sticked just prior to the time they will be neeed in the production process.
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3 inputs for MRP
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Master schedule
bill of materials inventory records |
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List some outputs of MRP
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planned order schedules
order releases changes performance control reports planning reports exception reports |
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Define Master schedule
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aka master production schedule
states which end items are to be produced when they are needed and in what quantities. |
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Define cumulative lead time
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the sum of lead times that sequential phases of a process require, from ordering of parts or raw materials to completion of final assembly
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Define bill of materials
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one of three primary inputs of MRP; a listing of all of the raw materials, parts, subassemblies, and assumblies needed to produce one unit of a product.
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Define product structure tree
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visual depiction of the requirments in a bill of materials, where all components are listed by levels.
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Define inventory records
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one of the three primary inputs in MRP, includes into on the status of each item by time period.
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2 methods for updating MRP
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regenerative system
net-change system |
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Define Planned order
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schedule indicating the amt an timing of future orders
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Define order releases
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authorization for the execution of planned orders
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Define changes
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revisions of due dates or der quantities, or cancellations of orders.
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Define exception reports
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data on any major desrepancies encountered.
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regenerative system
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approach that updates MRP records periodically
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net-change system
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approach that updates MRP records continuously
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important requirements of MRP
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A computer and necessary software
accurate and up to date master scheds bills of materials, and inventory records integrity of file data |
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define MRPII
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Manufacturing Resources planning: expanded approach to production resource planning, involving other areas of a firm in the planning process and enabling capacity requirements planning.
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What is ERP
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Enterprise resorce planning: entegration of financial, manufacturing, and human resources on a single computer system.
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