Abstract
Continuous improvement of project processes for product developments is necessary to provide high reliable products or services for customers constantly under the global competition with severe change of business environment. For this purpose, ISO9001 audit, assessing quality management system, and process quality assurance, assessing practice level of project management rules, have performed until now. However those activities focused on either improvement of rules or that of practice level. In this paper, we propose a new process improvement method applying Quality Management System Evaluation Method that we developed. Our method guides improvement approach based on the process level of organization evaluated with our method. We applied our method to internal process improvement activities and their results show that our method achieves well results of improvement in project management process in a short time.