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What is SPC?
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Statistical Process Control Explained
Statistical Process Control (SPC) is a set of tools designed to help reduce variation by identifying the source of variation, taking appropriate corrective action, and verifying the results.
  • •  Dr. Walter Shewhart of Bell Labs developed a theory of Statistical Process Control in 1924.
  • •  During the '20's Dr. Shewhart presented his theories in a series of lectures that were published in a book , Economic Control of Quality Manufactured Product (1931).
  • •  SPC came into wide use during the 1940's as a result of war production efforts.