Sunday, March 15, 2009

ISO 9000 and Quality Gurus

ISO 9000 and Quality Gurus

You may wonder what's behind ISO 9000? Who are those guys who established principles, incorporated in ISO 9000. First of all, let's see who are these guys who contributed to quality. They are: Walter ShewhartEdwards DemingJoseph JuranGenichi Taguchi,Armand FeigenbaumKaoru Ishikawaand Philip Crosby.

 

Walter A. Shewhart (1891 � 1967)

Born in Illinois, USA, Shewhart graduated University of Illinois and then he obtained the doctorate in physics at University of California in 1917. Working at Western Electric Company as an engineer, he was able to make a serious contribution to a major problem: reliability of the equipment buried underground. Control charts created by him were use to differentiate between assignable sources of variation and pure chances of variation. Shewhart studied randomness and recognized variability which exists in all manufacturing processes. In his opinion, reducing variability is equivalent to quality improvement. Later Shewhart worked for Bell Telephone Laboratories until his retirement in 1956. He wrote several articles and books, most representative being Economic Control of Quality of Manufactured Product in 1931, Statistical Method from the Viewpoint of Quality Control in 1939. On more thing about Shewhart: he is considered to be the grandfather of quality control.

 

W. Edwards Deming (1900 � 1993)

Known as the father of quality, Deming was a statistics professor at New York University during the 40s. He studied for several years with Walter Shewhart; this was the base of his contribution to quality. After World War II, Deming was involved in assisting Japanese companies to reborn from their own ashes. His contribution was in improving quality, by setting a 14 points principles which should be the foundation for achieving quality improvements. Japanese companies applied extensively these principles; today's power of Japan and quality of their products has a strong root in this matter. Deming emphasized on the role of management in achieving quality. He noted that around 15% of poor quality was because of workers, and the rest of 85% was due to bad management, improper systems and processes. In his opinion, managers should involve employees in solving the problems, not simply to blame them for poor quality. Deming's 14 principles are:

The most important book he wrote among other is Out of the Crisis in 1987. What is relevant to this book along these 14 principles is that he initiated the movement toward Total Quality Management, even he didn't used this expression. Nowadays, there exists Deming Prize, introduced by JUSE (Japanese Union of scientists Engineers); this prize is awarded annually for best proponent of TQM.


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