Just in Time appeared first in Japan, in Toyota manufacturing plants. Taiichi Ohno is the founder of this methodology. In general, Just in Time was applied in Japan to improve competitiveness by minimizing waste, improving production efficiency and product quality. It also reduces inventory, detects fast defects. Also, Just in Time is based on the smooth communication between the company and the supplier. A company can operate with low levels of inventory, and be able to get required supplies fast.
Based on the studies of Lau (2000), Kristy et al. (2001), we assessed similarities and differences between TQM and JIT.
- Both TQM and JIT rely on top management engagement;
- Focus on continuous improvement.
- Both methods share common values TQM put emphasis on customer satisfaction, employee involvement, and continuous improvement;
- Just in Time gives emphasis to waste reduction including inventory.
Just in time methodology: using Just in Time, the company will use better resources, and will gain a competitive advantage.
- Establishing a pull system: you start a work only if a customer ask for it.
- Eliminate waste: Just in Time reduces waste. There are different types of waste (Time, overproduction, defects, etc.).
- Continuous improvement: Just in Time encourages continuous improvement, employees give suggestions for improvement.
- Simplicity and flexibility: Just in Time supports simple and flexible ideas.