Global sourcing has led to shifts in the supplier base for companies in recent years. With the increasing share of international suppliers, the importance of purchasing has grown, and supplier management has become more complex. This book closely examines supplier development as part of a strategic supplier management approach. The first part outlines the possibilities and tasks of supplier development, distinguishing between strategic and reactive approaches, as well as direct and indirect development. It presents methods and success factors, along with options for outcome verification. The second part provides an overview of concepts and practices for supplier development in other companies and within BSH Bosch Siemens Hausgeräte GmbH. Building on this, e.