Abstract
Managing dispersion is a core concept of quality management. This concept can be applicable to both hardware and software. The dispersion is divided into two categories ; systematic dispersion and random dispersion. This paper describes experiences on perception of the systematic dispersion and its application to process capability improvement, focusing on software design process which sometimes seriously affects development speed and product quality. This paper indicates that fact-based categorization of human behavior leads to a stabilization of software design process and that sharing business goals and innovating design methodology lead to a significant improvement of process capability of entire organization. This paper suggests that risks associated with a short period software project can be effectively managed through the use of organizationally accumulated knowledge of countermeasures which are created and applied to prevent systematic dispersion.
