Abstract
From previous studies of WBS cases, the author suggests the possibilities to use WBS for the communications between stakeholders. The purpose of this paper is to examine the process of develop and apply the 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.
