The funnel experiment is a visual representation of a process. It shows that a process in control delivers the best results if left alone. The funnel experiment shows the adverse effects of tampering with a process through the four setting rules.
The experiment was devised by Dr. W. Edwards Deming. It described in his famous book titled 'Out of the Crisis'.
For a detailed explanation of each rule, please click the "Explain" button on the operations panel.