Process Goal Charts for Quality Improvement Programmes

Total quality management programmes emphasizing continuous improvement have become increasingly popular as companies perceive the importance of quality in maintaining or enhancing their competitive position. Although improvement programmes are extremely valuable, they do not eliminate the need for control. Unfortunately, companies striving for quality improvement may de‐emphasize, or even abandon, the use of process control charts, believing that process control cannot be applied during periods of change. There is a need for a procedure formally linking the methodology of statistical process control – which assumes process stability – to the management of quality improvement programmes – which assumes constant positive change. Provides a procedure to develop and use process goal charts. The procedure uses a straightforward adaptation of the standard process control chart methodology to support and control the planned change of a continuous improvement programme. The procedure is illustrated with a simple example and possible extensions of the procedure are suggested.