System Migration Overview Provides comprehensive guidance for system-level migrations including operating system changes, hardware platform transitions, mainframe modernization, virtualization, and data center migrations. Focuses on system infrastructure that underlies applications and platforms. Key Points: - System migrations often involve multiple skills: OS + database + application coordination - Plan for 30-50% more time than initial estimates - Parallel run periods reduce risk but increase cost - Mainframe migrations are typically multi-year projects - Physical to virtual conversions ra…