How to Build a Successful AWS Migration Strategy

Organizations across the public sector and commercial markets continue to evaluate the move from on-premises infrastructure to the cloud. While the benefits of cloud adoption are well understood, successful migrations require more than simply selecting a platform. They require preparation, visibility and a clear business case.

For IT leaders considering a move to Amazon Web Services, the migration journey often begins long before the first workload moves.

One of the most common obstacles to cloud migration is surprisingly simple: incomplete visibility into the existing environment.

Many organizations begin planning migrations without a current inventory of their infrastructure. Without a clear understanding of servers, applications, dependencies and costs, migration timelines quickly slip and budgets become difficult to predict.

A successful migration requires understanding the full technology stack, including:

Infrastructure and hardware assets

• Application dependencies
• Software licensing
• Data center costs
• Operational overhead

This level of discovery allows organizations to accurately estimate migration timelines and costs while avoiding unexpected delays.

This discovery phase is where experienced partners can make a significant difference. CDW works with organizations to assess existing environments, map application dependencies and build migration strategies aligned to operational and business priorities.

Cloud migrations often reveal years of accumulated technical debt.

Outdated operating systems, unsupported software and aging infrastructure can slow migration efforts and increase costs. These challenges are not caused by migration initiatives — they are existing issues that become visible during modernization.

Addressing technical debt before migration allows organizations to reduce their migration complexity, improve security posture, shorten timelines and lower long-term costs.

Organizations that modernize foundational systems early are better positioned to move quickly when migration opportunities arise.

Through structured assessments and modernization planning, CDW helps organizations identify technical debt and prioritize remediation efforts before migration begins.

For many organizations, especially in the public sector, migration decisions must be supported by a clear financial justification.

Traditional cost comparisons often focus only on hardware purchases. However, a complete total cost of ownership analysis must also include operational overhead.

On-premises environments require ongoing investment in:

• Data center facilities
• Power and cooling
• Hardware lifecycle management
• Contracts and licensing
• Operational staffing

Cloud platforms such as Amazon Web Services (AWS) provide a consumption-based model that allows organizations to scale infrastructure as needed while reducing the operational burden of managing physical environments.

This enables organizations to redirect staff time toward strategic initiatives instead of routine maintenance.

Budget cycles and funding constraints can make large-scale migrations difficult to execute all at once.

Many organizations instead adopt a phased migration strategy, moving applications incrementally as funding becomes available.

CDW helps organizations design these phased roadmaps, aligning migration waves with funding cycles, operational readiness and business priorities. This approach allows organizations to reduce risk, demonstrate early success, modernize critical workloads first and align the migration with funding cycles.

AWS provides a range of migration services and automation tools that help organizations move workloads in phases while maintaining operational continuity.

Even partial migrations can deliver meaningful benefits, particularly when organizations begin with high-impact workloads or under-resourced environments such as disaster recovery systems.

Cloud adoption also supports emerging technology initiatives.

Artificial intelligence initiatives require scalable compute and storage resources that can be difficult to provision in traditional environments.

Cloud platforms provide flexible infrastructure that allows organizations to experiment with AI capabilities without large upfront investments. This flexibility enables organizations to explore new technologies while maintaining control over costs.

Compliance requirements continue to evolve across industries, particularly in regulated public-sector environments.

Cloud platforms such as AWS provide tools that simplify both implementing and maintaining compliance controls. Automated reporting and monitoring capabilities make it easier for organizations to demonstrate compliance and respond to changing regulatory requirements.

This reduces the administrative burden on IT teams while improving visibility and accountability.

Successful migrations begin with preparation, but the long-term value extends beyond infrastructure modernization. CDW helps organizations take a structured approach to cloud adoption, combining assessment, planning and migration expertise to reduce risk and accelerate outcomes.

Through programs like the AWS Migration Acceleration Program (MAP) and CDW’s AWS MAP Assess Solution, organizations can gain visibility into their environments, identify modernization opportunities and build a clear path for migration.