Moving Mountains - Migrating Large Systems and Creating a Single Source of Truth

Learn how to migrate large, legacy software systems through a comprehensive conference talk that explores the challenges and strategies of modernizing foundational business systems. Discover the real-world approach taken over two years to consolidate six core systems into a single source of truth, examining the techniques, obstacles, and solutions that led to successful migration. Understand why software systems that serve as business foundations become "mountains" - encoding years of decisions, bug fixes, and implicit behaviors that make maintenance increasingly difficult. Explore how migration strategies must adapt based on specific requirements and risk tolerance. Gain practical insights into managing the complexities of large-scale system migrations, including planning approaches, risk mitigation techniques, and resolution strategies that proved effective in a multi-year enterprise transformation project.