Chapter 1. Introduction.- Part 1. Basics.- Chapter 2. What is Data Governance?.- Part 2. Planning.- Chapter 3. Success Factors for the Implementation.- Part 3. Implementation.- Chapter 4. Development of a Responsive Operating Model.- Part 4. Digital Transformation.- Chapter 5. Fundamentals of the Digital Transformation.- Chapter 6. Data Governance as Driver of Value Stream Optimization and as Pacemaker for the Digital Transformation.- Part 5. Performance Measurement.- Chapter 7. Measuring the Success of Data Governance.- Chapter 8. List of Principles.- Chapter 9. Bonus: Data Definition Template.- Chapter 10. Closing Words.