How can as many employees as possible be motivated and empowered to contribute constructive and creative ideas for the continuous improvement of operational processes and services? Based on numerous empirical studies, this book demonstrates the prerequisites necessary to develop an efficient and ultimately excellent idea management system. A framework for explaining the influencing, design, and efficiency factors of idea management has been continuously updated and refined over thirty years of research. This has laid the foundation for a system of criteria by which the excellence of an idea management system can be assessed.