PROJECT ON Just in Time(JIT)

Control charts and scatter diagrams are perhaps the most important statistical tools available to aid in the PDCA continuous improvement effort.

That is why they were given considerable attention in Chapter 3. Recall that control charts are used to determine when a process is stable and whether or not it is in control. Control charts are also used in the check step to reveal the success of the plan and do steps in improving the mean outcome or in reducing the variability of the process. Scatter diagrams and the related regression and correlation techniques are powerful tools for identifying cause and effect relationships. Refer back to Chapter 3 for a review of these important statistical tools.

A Long Term Perspective Although the effect of a small improvement may seem trivial, the concept of continuous improvement becomes a powerful strategy in the long run as the cumulative benefits of hundreds, perhaps thousands of small improvements are obtained. It is somewhat analogous to an athlete training for the Olympics. The 20