Abstract
While the demand of the society for IT that based on open architecture becomes severe, the difficulty of the open system SI projects increase and expectations to project manager have risen. However, project manager in this area runs short, and immediate development is requested. In this thesis, considering the development of project manager who take part in the open system SI projects, both sides of technology and management skills as systems engineer are discussed. The characteristic and relation between technology and management skills required for SI projects are clarified, followed by some tips and specific approach to acquire both skills in a balance manner.
