3 Strategies for Migrating Applications to the Cloud

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Strategies for migrating applications to the cloud involve improvements, optimizing resources, minimizing costs and risks. Learn about the 3 pillars
The cloud enables agility, innovation and growth for businesses. That is why more and more companies are deciding to migrate to the cloud . Applications are no exception and in the accelerated digital transformation we are experiencing, an environment that provides flexibility, scalability, data accessibility and speed is almost a requirement. Either they are developed in the cloud, cloud native, or the transfer of existing applications to the cloud is addressed.

Let's see how to do the second.


The first step will be to define a plan for how to approach the migration of each of the applications and in what order you will do it. This plan may be subject to change as the migration progresses and will stockholder database greatly on the type of systems your systems are in.

The complexity of migrating applications to the cloud varies depending on the architecture and existing licensing agreements.

A virtualized service-oriented architecture would be at the low complexity end of the spectrum while a monolithic mainframe would be at the high complexity end of the spectrum.






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Migrating to the cloud: the best way to optimize data management





3 Strategies for Migrating Applications to the Cloud
The capabilities of the organization, the time available to complete the project, and the expectations generated by the plan to move applications to the cloud will determine the strategy to be applied. There are many different ways to achieve this and here we summarize the 3 most popular:

Replatforming
Rehosting
Buyback
Let's see what implications each of them has.

Replatforming : This involves relocating, for example, an e-commerce site, moving it to a different platform. This action may seek optimization in the cloud or the achievement of some tangible benefit, although its main characteristic is that it is carried out without changing the central architecture of the application at all. When deciding on this way of migrating applications to the cloud, it is necessary to take into account whether you prefer to use a platform fully managed by the provider, such as Amazon Elastic Beanstalk, or if, on the contrary, it is more convenient to opt for a database platform as a service. This alternative is recommended when legacy systems begin to fail or if the business finds that new functionalities are needed.

Rehosting: This is a new development move that many cloud-focused application migration projects undertake, using native cloud capabilities but in a legacy migration scenario. The goal is to scale the migration quickly to meet a business case. The big advantage of this option is the cost savings involved and the fact that applications are generally easier to optimize and redesign once they are already running in the cloud.