Just-in-time concepts, cross-docking, efficient consumer responses, category management, and internet usage in retail are just a few of the additional requirements and new goals of inventory management. The new edition highlights current developments and new aspects in this field. It introduces the fundamentals of multi-tier inventory management systems and presents implementation concepts for all functions and processes in complex retail companies. The concept of operational units is applied according to the principle of "simplification through standardization," which is designed to make the design of inventory management systems significantly more efficient, better, and simpler. Examples from the use of systems such as DISPOS II and SAP Retail illustrate the practical applicability of the concepts.