In 2022, it is a good time to move your existing legacy solution design to cloud solution. Many existing migration is mostly focused on infrastructure. Although this allows you to take advantage of cloud infrastructure, you cannot utilise the full potential of it. Thus, it is time to refactor your application solution for cloud. These are some of steps that you should be starting.
Legacy applications design are usually highly coupled. Some examples are J2EE or web tiered framework where database and application logic reside within a single server. This makes it difficult for you to migrate to cloud because of dependencies. Decoupling removes and clean up these dependencies. Thus, you can move easily or change to other cloud design.
REST your Integration
Decoupling step will push you towards the usage of REST API. These steps also help you to standardise all your integration points and connectivity. You can also move your customisation out of the products and connect via REST API. This step let you remove the coupling within application. You will also find this step useful if you will decide to move to SaaS (Software as a Service).
There are two important steps to start planning if you have intention to change to cloud design. You must look into how you can decouple your existing applications. The design to use REST will help you determine on how you can easily move to SaaS. These steps will transition your legacy applications into cloud design.