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This strategy is also known as lift, tinker, and shift or lift and reshape. Using this migration strategy, you move the application to the cloud, and you introduce some level of optimization in order to operate the application efficiently, to reduce costs, or to take advantage of cloud capabilities. For example, you might replatform a Microsoft SQL Server database to Amazon RDS for SQL Server.

Using this strategy, you might make a few or many changes to the application, depending on your business goals and your target platform.

The following are common use cases for the replatform migration strategy:

You want to save time and reduce cost by moving to a fully managed service or serverless service in the AWS Cloud.

You want to improve your security and compliance stance by upgrading your operating system to the latest version. By using End-of-Support Migration Program (EMP) for Windows Server, you can migrate your legacy Windows Server applications to the latest, supported versions of Windows Server on AWS, without any code changes. You can use this decision tree in the AWS EMP for Windows Server User Guide to help you determine your EMP workloads.

You can reduce costs by using AWS Graviton Processors, custom-built processors developed by AWS.

You can reduce costs by moving from a Microsoft Windows operating system to a Linux operating system. You can port your .NET Framework applications to .NET Core, which can run on a Linux operating system. Porting Assistant for .NET is an analysis tool that helps you port your applications to Linux.

You can improve performance by migrating virtual machines into containers, without making any code changes. You can modernize your .NET and Java applications into containerized applications by using the AWS App2Container migration tool.

The replatform strategy keeps your legacy application running without compromising security and compliance.

Replatform reduces cost and improves performance by migrating to a managed or serverless service, moving virtual machines to container, and avoiding licensing expenses.