Criteria Lift and Shift (Rehost) Replatform Refactor Repurchase Relocate
Approach Move apps/data as-is Minor cloud optimizations Redesign for cloud-native Replace the old system with a cloud-based SaaS solution Move apps to a different region or zone
Scalability Limited scalability Some scalability improvement Fully scalable with cloud-native design Scalable depends on the SaaS solution Scalable based on the new region’s resources
Time to Complete Fast Moderate Long Moderate Moderate
Cost Low initial cost, higher cloud Moderate High initial, long-term Moderate, depends on SaaS Moderate, depends on SaaS
Cloud Optimization Minimal cloud benefits; does not leverage cloud features effectively Partial optimization uses cloud features like auto-scaling Fully optimized for cloud-native features and scalability Fully optimized for the cloud with native capabilities No cloud benefits
Complexity Simple Moderate High Low to Moderate Low to moderate
Vendor Lock-In Low Moderate High High None
Integration No integration needed Some cloud-native integration Full cloud-native integration No integration No integration
Disaster Recovery Basic recovery with manual setup Better recovery with some cloud tools still requires work Best recovery with automated cloud tools A SaaS provider handles DR Standard, on-premises DR