Software Architect's Handbook

Migrating to the cloud

Migrating a legacy application to the cloud is another way that it can be modernized. Although not every legacy application will be compatible with every cloud service, there are migration paths that will allow you to take most legacy applications to the cloud. Certain cloud services will be more suited to a particular application.

There are a number of reasons why a legacy application will benefit from a move to the cloud. It can reduce costs while at the same time providing greater levels of availability and scalability. A cloud provider will be responsible for the hardware and infrastructure. Depending on the cloud model (for example, IaaS, PaaS, or FaaS), it may also be responsible for the operating system and other ...