Red Bead Experiment Part 5

The "Red Bead Experiment" was an interactive teaching tool of Dr. Edward Deming. In the experiment, a corporation is formed from "willing workers", quality control personnel, a data recorder, and a foreman. The corporation's product is white beads, which are produced by dipping a paddle into a supply of beads. The paddle has 50 holes in it, and each hole will hold one bead. Unfortunately, there are not only white beads in the bead supply, but some defective red beads. The production of the beads is strictly controlled by an approved procedure.

Various techniques are used to ensure a quality (no red bead) product. There are quality control inspectors, feedback to the workers, merit pay for superior performance, performance appraisals, procedure compliance, posters and quality programs. The foreman, quality control, and the workers all put forth their best efforts to produce a quality product. The experiment allows the demonstration of the effectiveness (or ineffectiveness) of the various methods. Some humor is also included along the way.

Describing the Red Bead Experiment has all the dangers of writing a good movie review. One does not want to give out the complete plot line in the description. Suffice it to say that at the end of the experiment, a Statistical Process Control chart is utilized to examine the results of the experiment. What is discovered is that several of the actions taken (which are commonly seen every day in the workplace) were detrimental to the employees and the workplace, and had no improving effect on the process. The concluding comments point out the hazards of misuse of performance data, and how to properly use performance data in a quality environment in order to achieve continual improvement.

Presentation by: Steve Prevette

Category:

Education

Tags:

• Edward Demming
• Dr. Demming
• Red Bead Experiment
• Statistical Process
• Control chart
• C-charts
• Steve Prevette
• Fluor Hanford
• Department of Energy

[kentkaizen]

i feel that this experiment is narrated to suit Deming's point of Teamwork

it is because the workers have no control over the bead colour gathering

that the average or above still share the same result

in real life, the one with sharper or bad eyesight does have an impact on result

[amvann1]

Nice, simple lesson in how to keep control charts