Abstract
This is a comparative study on the operating agreement of the management services for building construction projects. Five operating agreements of building construction projects are analyzed by the viewpoint of roles, tasks and responsibilities between stakeholders of each project. As a result, three findings are presented in this paper. 1. An operating agreement affects other operating agreements. 2. There are thirteen important operating domains for the management services. 3. It is very important in a building construction project to interlock two or more operating agreements.