Abstract
To exploit the knowledge effectively for organization, it is important to accumulate continually knowledge. We developed project retrospective method using "Risk Propagation Model (RPM)." The RPM consists of the chain reaction information of the cause and effect. By using the propagation model and the results of the risk assessment, the method outputs every possible difficulty in the project. This method has the potential to provide project members with failure causes that they do not notice. In this paper, we explain the method, and mention the possibility of the method.
