If it is too small, the rain will come in. If the door of a new car is too big, it will not close. When the ancients built their temples they needed squared stones that would fit together.
The focus on reducing variation as a way to improve quality is a non‐obvious contribution of quality management. Reducing variation: statistical process control Two of Shewhart's contributions continue to influence the daily work of quality-namely, control charts and the Plan–Do–Study–Act (PDSA) cycle. Shewhart, Deming, and Juran are often considered to be the three founders of the quality improvement movement. 4, 5 Joseph Juran also worked at Hawthorne from 1924 to 1941 and was influenced by Shewhart. While at Hawthorne, Shewhart met and influenced W Edwards Deming who went on to champion Shewhart's methods. Shewart worked at Hawthorne until 1925 when he moved to the Bell Telephone Research Laboratories where he remained until his retirement in 1956. 3 It was one of the largest manufacturing plants in the country.
The company and its factory grew rapidly with the need for telephones. The Western Electric Company manufactured telephone equipment for them and since 1905 its major plant was the Hawthorne Plant in Cicero, a suburb of Chicago. Western Electric produced hardware for the Bell Telephone Company, which became the American Telephone and Telegraph Company (AT&T). In 1918 Shewhart joined the Western Electric Company to assist their engineers in improving the quality of telephone hardware. He taught at both universities and went on to head the department of physics at Wisconsin Normal School at LaCrosse for a short period of time. He received Bachelor's and Master's degrees from the University of Illinois, then attended the University of California at Berkeley from which he was awarded a Doctorate in physics in 1917. Walter Shewhart was born in New Canton, Illinois on 18 March 1891 to Anton and Esta Barney Shewhart.
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