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Hayes, R. H. 1981. Why Japanese factories work. Harvard Business Review (July-August): 57- 66. Summarized by Jose M. Luis |
Purpose: To answer the question why Japanese manufacturing has become so successful and competitive.
Background:
- 20 years ago, Americans pictured the Japanese factory as a sweat shop making shoddy products.
- Today, Americans imagine gleaming factories peopled by skillful robots – the factory of the future.
- In fact, it is the factory of today, running as it should.
- Achieved excellence by doing simple things, doing them very well, and improving them all the time.
What Hayes saw:
- Workers’ uniforms, machines and floors were clean. Sources of litter & grime carefully controlled.
- Workers were responsible for keeping machines and workplaces clean and in good order.
- "If you clean up the factory floor, you clean up the thought processes of the people on it, too".
- Suppliers often made three or four deliveries a day.
- Finished goods were removed immediately to a warehouse or shipped to customers.
- Buffer inventories were unnecessary, why?
- Preventing machine overload. Japanese use, Americans abuse machines.
- Preventive maintenance, constant cleaning & adjustment, reduced rates of use.
- Comprehensive machine monitoring and early warning systems to check process flow, tolerance, rate of use.
- No-crisis atmosphere. Production schedules set 2 weeks in advance. No expediting, no overloading.
Attitudes and practices of Japanese managers:
- Pursue quality beyond the point of cost effectiveness. Goal: ZERO DEFECTS.
- "A defect is a treasure". Why?
- Quality means: Error-free operation. Problem can be design, inventory, delivery, not just a defective product.
- Quality is not achieved by random decisions but by an all-encompassing management system supported by the top.
- Planning - Careful planning in the design stage with engineers, production, quality assurance, sales, etc.
- Training - Train workers to deliver consistently high-quality products.
- Feedback - Encourage workers & quality inspectors to identify and correct problems. No "we against them".
- Materials – Intensive screening of incoming parts and materials. Pressure on suppliers to improve quality.
- The same conditions which promote defect-free operations also increase productivity.
- Design and fabricate most production equipment in-house.
- No safety margins and design cushions that manufacturers build into general-purpose machines.
Re-solving the problem of production
According to Hayes, the key to competing with the Japanese: Putting our best resources and talent to work doing the basic things a little better, every day, over a long period of time. Is he right, or is innovation a better idea?
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