Abstract
The introduction of Project Management by Japan Sewage Works Agency is not only a pioneering case at the Japanese government office but also the successful case of Reengineering. Since there was rapid increase of the volume of business along with the public investment of the local government, Japan Sewage Works Agency started to engage in Reengineering activity. The purpose of this paper is to examine the process of development of WBS and the application of WBS through the case of Project Management introduced by Japan Sewage Works Agency from 1996 to 2000. The JS Standard WBS forms the matrix in which the WBS constructed from the sewage treatment facilities as the deliverable of project, and the WBS necessary to complete them are combined. The point of intersection of the matrix becomes a work package. It is used to estimate the project cost.