Software process improvement activities based on CMM and their application

In our company, we tended to the conventional software process in which the developer's activities depend on their tacit knowledge. Therefore, similar mistakes and problems were often observed in two or more projects. By these mistakes and problems, the delivery delay of the software product and the quality problem after delivery lead to pressure of profits and loss of trust. In the worst case, the crisis of corporate fate is also expected. So, our company has performed the self-assessment of the degree of software process maturity by using the CMM at the shift from the 2nd edition of ISO9001 to the 3rd edition, and we have been defining the standard process to the best now. Moreover, based on the assessment results, we have been selecting the CAM's KPAs which can obtain the great improvement effect from the non-attained items, and tackling positively aiming at improvement in the process capability. In this paper, we focus on some KPAs from the non-attained items, show the improvement results obtained in two projects, and investigate them.