Research on software quality control method based on control chart

Improving the software quality unceasingly, is an important work of throughout the software life cycle, is a reliable guarantee of software projects which is successful implemented and completed. For the problems exist in the process of software quality management, researching with control chart. Based on the study of control chart theory, control chart application examples are given. The research of control chart theory including the control chart structure, the "3σ" principles of normal distribution, control limits, control line calculations and determine the control points of the rules and so on. Control chart application examples according to the application process, including calculate control limits, draw control chart, results analysis. The difficulty in using control chart is results analysis and control, using the process need to follow the principle "found different reasons, take measures, no longer appears, inclusion criteria ". The results show that the control chart supplies the scientific management methods and technical support for quality control, is the effective ways and means to achieve the software quality control objectives.