Abstract
In order to execute a project, the project manager makes an execution plan and monitors the progress of his project. Further, the manager should direct a countermeasure to cope with each risk caused in the project. Actually, if a major risk is happened unexpectedly, it is substantially impossible to solve such situation by the project manager. Therefore, it is important to cope with a risk in the early stage of the project. In this study, authors propose a method for avoiding unexpected risks as much as possible while the execution plan of project is made. In this method, a risk is identified by the fault-tree analysis of prepared work-packages in an ordinary WBS and a countermeasure of each risk is classified to revise the original WBS. An illustrative example is also provided to explain in proposed method.
