Application modernization patterns

Lift and shift

Sometimes called rehosting, the phrase “lift and shift” has become software development lingo for taking an existing application and moving it from a legacy environment (such as an on-premises server) to newer infrastructure, such as a public cloud platform.


Refactoring is essentially another way of saying “rewriting” or “restructuring.” This approach to application modernization entails taking a legacy application and retooling significant chunks of its underlying code to better run in a new environment.


This pattern can be viewed as a middle ground or compromise between the lift-and-shift and refactoring approaches. It does not require major changes in code or architecture, as with refactoring, but entails complementary updates that enable the legacy app to take advantage of a modern cloud platform, such as modifying or replacing the application’s backend database.

Application Modernization Challenges We Solve

No actual or detailed documentation (functional specification)

To smoothly substitute the legacy application, we mine business rules from existing application code and documentation, investigate code dependencies and component integrations. We readily cooperate with IT departments and other employees as well as third-party vendors, customer's partners, and other people knowledgeable of the application work.

Operational downtime

We ensure thorough testing coverage and broad monitoring to make sure modernized applications run as expected and don’t disrupt your business processes.

An application’s long freeze up

We can split the application into independent loosely coupled parts (e.g., microservices) for independent updates.


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