Countless guides describe how companies can successfully manage the challenges they face. This book focuses in detail on the path to achieving this, the "how." The author adopts a holistic, process-oriented approach to organizational development. The book outlines the transition from a function-oriented to a process-oriented organization in detail, supported by numerous practical examples. The author presents models, methods, procedures, and tools for implementation. The MITO model, with its method tool as a generic method toolkit, is explained comprehensively. The reference point for change management is not the vertical, hierarchical organizational structure, but rather, based on a role-based organizational structure, the horizontal value chain. Only from this perspective.