Download as PDF, PPTX
Just in time
- 1. JUST IN TIME BY, JIBINPAULOSE E-BATCH
- 2. What is JIT? A system of supplying goods as close as possible to when they are actually needed Keeping less inventory on hand by keeping less storing costs. Also known as JUST IN TIME PRODUCTION / The TOYOTA PDN. SYSTEM. Its origin and development was in Japan, largely in the 1960s and 1970s, particularly at Toyota.
- 3. Developments of JIT 1960’s : Developed as Toyota Production System by Taiichi Ohno and his colleagues. 1970’s: U.S. and European auto makers began to apply JIT to improve quality and productivity. 1990’s and beyond : expanded the JIT concept to steamline all types of operations.
- 4. Definition of JIT A set of techniques to increase productivity, improve quality and reduce cost of an operation. A management philosophy to promote elimination of waste and continuous improvement of productivity
- 5. That is, forJust in time, we need: Right materials Right place At the Right time.
- 6. Features Elimination ofwaste Quality at source Balanced and flexible work flow. Respect for people Continuous improvement(Kaizen). Simplification and visual control Focus on customer needs Partnership with key supplier's.
- 7. Traditional Process Focused Layout Jumbled flows, long cycles, difficult to schedule
- 8. JIT Cellular Manufacturing Productfocused cells, flexible equipment, high visibility, easy to schedule, short cycles
- 9. Elements of JIT JIT manufacturing focuses on production system to achieve value-added manufacturing TQM is an integrated effort designed to improve quality performance at every level Respect for people rests on the philosophy that human resources are an essential part of JIT philosophy
- 10. JIT and TQM-Partners Build quality into all processes Focus on continuous improvement - Kaizen Quality at the source- sequential inspection Jidoka (authority to stop line) Poka-yoke(inadvertent error prevention, fail-safe all processes) Preventive maintenance- scheduled Work environment- everything in its place, a place for everything
- 11. Respect for People:The Role of Employees Genuine and meaningful respect for associates JIT uses bottom-round management – consensus management(slow decision making process by committees or teams Actively engage in problem-solving (quality circles) Everyone is empowered Everyone is responsible for quality: understand both internal and external customer needs Team approaches used for problem-solving Decisions made from bottom-up Everyone is responsible for preventive maintenance
- 12. The Role ofManagement Responsible for culture of mutual trust Serve as coaches & facilitators Support culture with appropriate incentive system including non-monetary Responsible for developing workers Provide multi-functional training Facilitate teamwork
- 13. Supplier Relationships and JIT Use single-source suppliers when possible Build long-term relationships Work together to certify processes Co-locate facilities to reduce transport if possible Stabilize delivery schedules Share cost & other information Early involvement during new product designs
- 14. Implementing JIT Startswith a company shared vision of where it is and where it wants to go Management needs to create the right atmosphere Implementation needs a designated “Champion” Implement the sequence of following steps Make quality improvements Reorganize workplace Reduce setup times
- 15. Continued.. Reduce lotsizes & lead times Implement layout changes Cellular manufacturing & close proximity Switch to pull production Develop relationship with suppliers
- 16. The seven wastes Waste of over production Waste of waiting Waste of transportation Waste of over processing Waste of inventory Waste of motion Waste of making defective products
- 17. Claims for JIT Reduced inventory Reduced WIP Shorter lead times- not too early, not too late.. JIT is the result business want, not a starting point.
- 18. JIT action areas… Develop people- increase skills productivity, morale Eliminate waste in all areas Optimize materials handling and production flow Control tooling Improve continuously
- 19. ADVANTAGES Less spaceneeded Waste reduction Smaller investments DISADVANTAGES Risk of running out of stock Lack of control over time frame More planning required
- 20. Limitations Culture difference Traditional approach Difference in implementation of JIT Resistance to change OTHER FACTORS NEEDED FOR JIT: Relationship b/w management & employee Employee commitment Employee skill