exl_production


Production      
Lean production system 1. Production Keiretsu (vertical) Part Suppliers - Mftr (Assembler)  
    Part Suppliers outstide the (parent) company => "lean" production
      Long-term business relationships with part suppliers
    JIT (just in time) method Minimizing the inventory level, the length of queues, etc.
  2. Simple job description nice coordination under vague division of labor  
  3. job rotaion multiskilling  
  4. OJT    
  5. Quality Control (QC) circles    
  6. Egalitarianism with respect to: holidays, medical benefits, parking, cafeteria, open style office, uniform [Corporate hierarchy -- rank and status -- with respect to age and seniority]
Quality Control (QC) Origins of Total Quality Mgmt(TQM) or Total Quality Control (TQC): The idea of total quality (TQ) began with Joseph Juran and Edward Deming, both American academics. In the 1930s, Sir Walter Shewhart, a laboratory physicist, created ideas of Statistical Quality Control in America.  
    During WW II, Deming and Juran elaborated upon the ideas, which now form the basis of Total (not just statistical) Quality Control, and put forward a sophisticated theory of how to improve production at all levels: esp., a theory of how to re-organize human resources so that people, the greatest resource of the firm, use their time to the greatest effect
  Deming's main points for TQ Create constancy of purpose for improvement of product and service.  
    Cease dependence on inspection to achieve quality.  
    End the practice of awarding business on the basis of price tag alone.  
    Improve constantly and forever every process for planning, production and service.  
    Institute training on the job.  
    Break down barriers between staff areas. => Ambiguous job boundaries and responsiblity
    Institute a vigorous program of education and self-improvement for everyone.  
  kaizen: the Jpn term for continous improvement. This is the Jpn adaptation of TQ.  
    Quality Control (QC) Circles: The whole workforce would meet in groups to discuss how to improve quality  
    Suggestion system The Jpn company managers perceive the suggestion system not as a way of rooting out trouble-makers, but rather as means of persuading workers to think of ways they could increase productivity, and save time and money.
      This reflects the Jpn view of people as the company's most important resource.
The theory of TQ is very important to the understanding of Jpn decision-making processes. Many of Deming and Juran's ideas were based on a form of collectivity. The Deming and Juran ideas were not accepted in America in the late 50s; condemned as being unsuitable. SQC had become widely used in Jpn before being taken up inthe West more recently.
    A positive audience in Japan, a society which traditionally exploited ideas of cooperation based on group-oriented behaviour and consensus. The Jpn strong foundation in groupism and vertical egalitarianism is intact (= preseved), and there are few dissenters (= those who differ in opinion).
  The Deming and Juran ideas are not directly production-oriented; rather their strongest focus is on the social organization (=human side) of industry. It is consistent with the Jpn ideas that the human mgmt of people is an art and that human resources are the most imoportant recource in any complex org.  
  The Deming ideas emphasize the group coupled with egalitarianism and ranking, and the need to have a thoroughly systematic approach. The Confucianist-based ranking and hirarchical system in Jpn and the way it is reflected in the language, all provide a systematic holistic org. whereby almost all social roles are prescribed and the structure of the org. is not fluid (unstable). This provides a more stable foundation for systematic approach that can more readily implement ideas that need to be worked our for the entire system.
    SQC links quality information with accountability: the workforce is responsible for its own mistakes. This eliminates many inspectors and fixers, greately reducing indirect costs.
  The Deming ideas of not using inspectors was linked to the basic underlying decision-making process practised by the Jpn. The Jpn had a decision-making process in which problems were minimized through pre-impact extensive evaluation: *Deming's wheel: Step1 (Planning and pre-impact extensive evaluation: time-consuming stage) -> 2 (Doing: quick stage) -> 3 Checking (Time for this is to be minimized) -> 4 Correcting and Improving (Time for this is to be minimized) -> 1
    To evaluate first extensively makes action as risk-free as possible and involves as many company members as possible in this process, and to empower (=to give official authority) actual operators in decision-making processes in their production sphere.  
    Such evaluation seeks feedback from up and down and across the corporation, and only when consensus is reached is action taken.  


更新日 98/08/12
名前 kojima