This book describes the CATS SRM® supplier relationship management methodology, a proven and practical methodology for embedding supplier relationship management structurally and process-wise within any organization. In a world where organizations are becoming increasingly dependent on suppliers, professional process-based supplier relationship management is no longer a luxury but a necessity. This applies not only to the suppliers of today but also to the suppliers of the future. This book goes beyond existing theoretical models. It introduces new ways of thinking, supported by theory and shaped by practical experience, built on proven practices. CATS SRM® provides a framework for a clear and coherent supplier relationship management process that enables organizations to maintain control over collaboration, risks, market dynamics, and the fulfillment of both current and future business needs. From defining requirements for a supplier portfolio and ensuring the availability of suppliers that want to work with the organization, to coordinating agreements that extend beyond individual contracts and aligning with category management, purchasing, and contract management, this book provides insight into what a professional supplier relationship management process truly is and how it fits within a broader organizational context. This comprehensive best practice connects organizational goals with suppliers and contracts, and positions roles such as the supplier relationship owner, supplier relationship manager, category manager, purchaser, and contract manager within an overarching framework. This book is intended for professionals who want to enhance their supplier relationship management capabilities, departments seeking greater structure and coherence, and organizations aiming to increase the maturity of supplier relationship management and use it as a strategic instrument for achieving organizational goals.