This book contains ideas in information engineering and CASE for computer professionals developing applications in the AS/400 midrange computing environment. With a strong emphasis on planning as the key to quality software production, this guide outlines the skills necessary to manage and plan the development or acquisition of software in this environment. Basic issues in organizing the software effort, structural analysis techniques, graphics techniques and essential make-or-buy guidance are all presented. In addition, this book details the best tools available to AS/400 developers, including the latest iterations of Joint Application Development and Rapid Application Development techniques, the best CASE tools and popular AS/400 tools such as SYNON and As/SET.