This document discusses using a Work Breakdown Structure (WBS) to organize an ERP implementation project. It describes the typical phases of an ERP project based on the ASAP methodology, including project preparation, business blueprint, realization, final preparation, and go-live and support. It then proposes expanding these phases into 11 work packages in a WBS to further break down the project into independent tasks and address potential challenges at each stage. These include activities like system architecture design, configuration and development, data conversion, testing, training, and cutover. The WBS provides a framework for managing the project by assigning responsibilities, estimating costs, and tracking progress for each defined work package and task.