This book is addressed at decision makers, project teams, project managers, company's IT-managers, and staff of consulting companies, who are either involved in complex standard software implementation, or release migration projects. The book stresses the shortcomings of many present standard software implementations which mainly pertain to insufficiently optimised business processes, thus standard software has caused a lot of dissatisfied companies. The authors analyse certain popular implementation approaches (life-cycle-models) of different Standard Software suppliers. It shows how a new semi-process oriented way of implementing modern standard software systems may contribute to a better business performance.