To get the best benefits from cloud migration you need to upgrade all your applications to the cloud. To ensure a secure transition of your application you need to upgrade the physical platform to the cloud platform. The important cloud migration Strategies there are

Rehost Your Applications on Infrastructure as a Service (IaaS):

The best cloud migration strategy for your business is Rehosting your application to Infrastructure as a Service (IaaS) platform can migrate to the cloud as fast as possible. While performing this cloud migration strategy you can simply redeploy your application to a different hardware platform by changing their infrastructure configuration. The advantage of a cloud migration strategy allows you to move your applications to the cloud speedily, without changing
the architecture.

Refactor Your Applications for Platform as a Service (PaaS)

Another cloud migration strategy for companies that can choose to transfer their application to the cloud is re-architecting or refactoring their application for Platform as a Service (PaaS). This strategy is useful for though companies to reuse the languages, frameworks, and containers they have invested in while leveraging the code.

Revise Your Applications for IaaS or PaaS

Revising the applications for IaaS or PaaS is suitable for those companies who want to optimize their applications to leverage the cloud features of the infrastructure. The disadvantage of this strategy is that it not only consumes a lot of time but also requires upfront expenses to first modify the existing code base of their applications to support legacy modernization requirements and then use Rehost or Refactor cloud migration strategy to move the applications to the cloud.

Rebuild Your Applications on PaaS

The strategy of rebuild application on PaaS of your company they need to dispose of the code and frameworks of their existing application followed by the re-architecting of their application before moving to the cloud. The advantage of this cloud migration strategy is that it authorize the companies to take maximum advantage of the various innovative features of the provider’s cloud platform. This strategy also helps the companies to upgrade their developers’ productivity as they get access to the tools that allow customization of their application templates and data models, metadata-driven engines, and the communities that supply pre-built components.

Replace Your Application with Software as a Service (SaaS)

The strategy of replacing the applications with Software as a Service (SaaS) is suitable for those companies who want to dispose of their existing application or a set of their applications good use for commercial software delivered as a service. The advantage of this cloud migration strategy is that it allows the companies no need to invest in mobilizing their development team when the requirements of their business operations change very quickly.