Chapter 6 - Just-in-time (lean) purchasing. Just-in-time (JIT) or lean purchasing is introduced in Chapter 6. The current shift toward the so-called “Lean Thinking” manufacturing environment is one of the major motivations for JIT purchasing. JIT has changed the role of purchasing from merely placing orders to investigating the supplier’s technical and process capabilities.
Trang 1Purchasing and Supply Chain Management
3rd edition
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Chapter 6:
JustinTime (Lean)
Purchasing
Purchasing and Supply Chain Management, 3rd edition, Copyright © 2013
W. C. Benton Jr., All rights reserved
Trang 2The Two Rival Production systems
1 MRP production systems
2 Justintime (JIT) manufacturing
• Popularity of JIT
• HarleyDavidson and HewlettPackard
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Trang 3Justintime (JIT) Philosophy
• Justintime (JIT) is not just a set of tools but rather a philosophy
• The JIT philosophy is based on:
• Example of the JIT philosophy applied to a firm
Trang 4Justintime (JIT) Production
improvement
• Variability
Trang 5Definition of Lean Production System
including:
• Worker empowerment
• Process focus
• Pull production
• Continuous improvement
• The main objective:
• Satisfy customer needs on the highest possible level through the elimination of waste 5
Trang 6Push and Pull Production Systems
• Alternative systems for executing the production process
• The three systems:
• Combination of push and pull
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Trang 7Determining the Number of Kanban Cards
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Trang 8Example: Number of Kanbans
• How many kanbans are required for the bottling process?
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Trang 9JIT Purchasing Advantages
• Reduced inventory levels
• Improved leadtime reliability
• Scheduling flexibility
• Improved quality and customer satisfaction
• Reduced costs of parts
• Constructive synergies with suppliers
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Trang 10Justintime (JIT) and Environment
• Cultural Fit
organizations
and USA
• Low Variability in Demand
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Trang 11Questions?
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