OM 300 1nd Edition Lecture 31 Outline of Last Lecture I Predetermined Time Standards II Work Sampling III Ethics Outline of Current Lecture I JIT II Eliminate Waste III The 5 Ss Current Lecture Good production systems require that managers address three issues that are pervasive and fundamental to operations management eliminate waste remove variability and improve throughput Just In Time TPS and Lean Operations JIT is a philosophy of continuous and forced problem solving via a focus on throughput and reduced inventory TPS emphasizes continuous improvement respect for people and standard work practices Lean production supplies the customer with their exact wants when the customer wants it without waste JIT emphasizes forced problem solving TPS emphasizes employee learning and empowerment in an assembly line environment Lean operations emphasize understanding the customer Eliminate Waste Waste is anything that does not add value from the customer s point of view Storage inspection delay waiting in queues and defective products do not add value and are 100 waste Ohno s Seven Wastes 1 Overproduction 2 Queues 3 Transportation 4 Inventory 5 Motion 6 Overprocessing These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute 7 Defective products Eliminate Waste Other resources such as energy water and air are often wasted Efficient sustainable production minimizes inputs reduces waste Traditional housekeeping has been expanded to the 5 Ss The 5 Ss 1 Sort segregate 2 Simplify straighten 3 Shine sweep 4 Standardize 5 Sustain self discipline Remove Variability JIT systems require managers to reduce variability caused by both internal and external factors Variability is any deviation from the optimum process Inventory hides variability Less variability results in less waste
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