Cloud Migration Strategy: A Step-by-Step Guide

Beyond Lift and Shift

Cloud migration is not a technology project — it's a business transformation initiative. The organizations that get the most value from cloud don't just move existing workloads; they use migration as an opportunity to modernize architecture, improve operational practices, and enable new capabilities.

That said, not everything needs to be refactored. A pragmatic migration strategy uses different approaches for different workloads based on business value and technical complexity.

The Six R's Framework

We evaluate each workload against six migration strategies:

• Rehost (Lift & Shift): Move as-is. Best for workloads that don't justify refactoring investment
• Replatform: Minor optimizations during migration, like moving to managed databases
• Refactor: Rearchitect for cloud-native patterns. Reserve for high-value systems that will benefit from elasticity and managed services
• Repurchase: Replace with SaaS alternatives. Often the right choice for commodity capabilities like email, CRM, or HR systems
• Retire: Identify and decommission systems that are no longer needed
• Retain: Keep on-premises where regulatory, latency, or cost factors make cloud migration impractical

Migration Waves

We organize migrations into waves of 5-15 workloads, grouped by dependency clusters. Each wave follows a consistent pattern: assess, mobilize, migrate, optimize. Early waves should include low-risk workloads that build team confidence and establish operational playbooks.

Measuring Success

Cloud migration success should be measured beyond just "is it running in the cloud?" Track operational metrics (availability, latency, deployment frequency), financial metrics (total cost of ownership, resource utilization), and business metrics (time-to-market for new features, developer productivity).