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What three elements do lean systems have?
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1. Demand Driven
2. Focused on Waste Reduction 3. Has a culture dedicated to excellence and continuous improvement |
What are sources of waste?
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1. Inventory
2. Overproduction 3. Waiting time 4. Unnecessary Transporting 5. Processing Waste 6. Inefficient Work Methods 7. Product Defects |
What are the supporting goals in lean production?
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1. Eliminating Disruptions
2. Make the system 3. Eliminate waste, especially excess inventory |
What are the four elements of product design that are important to lean systems?
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1. Standard Parts
2. Modular Design 3. High Capacity systems with quality built in 4. Concurrent engineering |
What are the sever elements of process design that are important to lean systems?
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1. Small lot sizes
2. Setup time reduction 3. Manufacturing cells 4. Quality Improvement 5. Production Flexibility 6. A balanced system 7. Little inventory storage 8. Fail-safe methods |
In lean production what is the ideal lot size?
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One
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What are the benefits of a small lot size?
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-Reduces in-process inventory
* Lower carrying cost * Less storage space is necessary -Inspections and rework cost are lower when quality problems do occur -Less inventory to work off before implementing product improvement -Increased viability of product -Permits greater flexibility in scheduling - Increased ease of balancing operations |
What may be used to reduce setup time by capitalizing on similarities in recurring operations?
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Group technology
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What are the benefits of manufacturing cells?
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-Reduced Changeover Time
-High Equipment Utilization -Ease of Cross-Training Workers |
What is quality?
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The ability of a product or service to consistently meet or exceed customer expectations.
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What is reactive quality?
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Emphasis is on finding and correcting defects before they reach the market.
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What is proactive quality?
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Focuses on preventing mistakes from occurring. Greater emphasis is on customer satisfaction. Continuous improvement of all managers and workers.
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