4. FINDING OF WASTE AND CONTINUOUS REDUCTION OF WASTE
4.1 FINDING AND REDUCTION OF WASTE
The 9 types of waste and waste reduction examples are explained below. First 7 types have
been proposed by OHNO (1988):
1. Waste of defective production and waste in correction
2. Waste of overproduction
3. Waste in processing
4. Waste in haulage and walking
5. Waste of inventory
6. Waste of motion
7. Waste in waiting
8. Waste in disposing of rubbish
9. Waste in management and planning
4.2 JIT(JUST-IN-TIME) SYSTEM
The material distribution facilities were established so that materials can be delivered to the
site JIT. In addition, the JIT material distribution network was set up to link the field office,
branch offices, and material distribution facilities. Necessary materials are delivered to the
predetermined location (Room C on Floor B at Site A, for example) in time. To visualize the
JIT delivery process, the JIT delivery system board is posted to boost the awareness "Time is
money" among the workers.