Abstract
The project on condition of a matrix organization has been increasing. A project manager's roles and responsibilities in this matrix organization is becoming more important than ever. However, the various problems are coming out also with the roles and responsibilities such as a subject for communication problems. So, based on my experience and the matrix theory, I have examined the project manager's problems of the matrix organization. It proposes what a project manager should do the project of a matrix organization for carrying out well from a project manager's roles and responsibilities.
