Statistical Process Control
Control Charts Explained: The Statistical Tool Behind the Red Bead Experiment
Control Charts Explained: The Statistical Tool Behind the Red Bead Experiment
Statistical process control (SPC) is a cornerstone of modern quality management, and no tool within this discipline is more iconic and essential than the control chart. Popularized by Dr. W. Edwards Deming during his trailblazing seminars—and vividly illustrated in his legendary Red Bead Experiment—control charts provide an objective lens through which teams can distinguish genuine process shifts from random variation.