問題一覧
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Lecture 10
Quality Control
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Inspection of lots before/after production
Acceptance Sampling
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Inspection and corrective action during production
Process Control
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Quality built into the process
Continuous improvement
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Concluding a process is not in control when it actually is.
Type I error
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Concluding a process is in control when it is not.
Type II error
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Lecture 11
Aggregate Planning and Master Scheduling
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Intermediate-range capacity planning that typically covers a time horizon of 2 to 18 months
Aggregriate Planning
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Lecture 12
Material Requirement Planning (MRP) and Enterprise Resource Planning (ERP)
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A computer-based information system that translates master schedule requirements for end items into time-phased requirements for subassemblies, components, and raw materials.
Material requirements planning (MRP)
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MRP
Material requirements planning (MRP)
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Department or work center reports that compare known and expected future capacity requirements with projected capacity availability.
Load Reports
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Lecture 13
Inventory Management
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Physical count of items in inventory made at periodic intervals
Periodic System
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System that keeps track of removals from inventory continuously, thus monitoring current levels of each item
Perpetual Inventory System
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Two containers of inventory; reorder when the first is empty
Two bin system
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Bar code printed on a label that has information about the item to which it is attached
Universal product code (UPC)
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A technology that uses radio waves to identify objects, such as goods, in supply chains
Radio frequency identification (RFID) tags
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Stock that is held in excess of expected demand due to variable demand and/or lead time
Safety Stock
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Lecture 14
Just-in-Time Lean Operations Maintenance
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A flexible system of operation that uses considerably less resources than a traditional system
Lean Operation
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highly coordinated processing system in which goods move through the system, and services are performed, just as they are needed
Just in Time (JIT)
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The cycle time needed to match customer demand for final product
Takt Time
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Card or other device that communicates demand for work or materials from the preceding station
Kanban
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A visual tool to systematically examine the flows of materials and information
Value Stream Mapping