GMS 401 Lecture Notes - Lecture 8: Total Quality Management, Central Tendency, Normal Distribution
3 Mar 2018
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Document Summary
Statistical process control (spc): a process used to monitor standards, make measurements, and take corrective action as a product or service is being produced. Control charts: graphic presentations of process data over time, with predetermined control limits: constructed in such a way that new data can be quickly compared with past performance data. Inspection can involve measurement, tasting, touching, weighing, or testing of the product: goal = to detect a bad process immediately. Inspections are expensive and do not add value to the product. Operations managers need to know critical points in the system: 1- when to inspect, 2- where to inspect. Inspection is not a substitute for a robust product produced by well trained employees in a good process. Even with 100% inspection, inspectors cannot guarantee perfection: therefore, good processes, employee empowerment, and source control are better solutions than trying to find defects by inspection, cannot inspect quality into a product.
