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What Is Application Migration Process?

Tuesday , 16, February 2021 Comments Off on What Is Application Migration Process?

Determined as a process, application migration means moving software applications to the new environment. Mostly, it refers to taking business advantages of switching to cloud platforms, including better control over corporate finances, higher responsiveness, and faster updates.

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Types Of Application Migrations?

Depending on the nature of computing environments, application migrations have 4 types:

  • Between cloud environments
  • Between data centres
  • From a public cloud to a private/hybrid cloud
  • From an on-premises data centre to a cloud

Particular attention deserves application migrations to the cloud. Although there are numerous subcategories for this type, they’re easy to remember: all the strategies start with the letter “R.” That’s why they have got an alternative “The 6R’s” title.

  • Rehosting (or “lift-and-shift”)

This case is relevant for a large legacy shift. In this case, you can do the exact migration quickly and save time for optimizing and architectural adjustments. The process happens between an on-premises server and a cloud-based virtual machine.

  • Refactoring (or “lift, tinker, and shirt”)

In the situation of refactoring, the severe changes to an application are already needed. It can take a form of recoding major parts or making some slight adjustments. For example, you can re-architect the monolithic software into the set of several microservers. All this transformation is used to adapt the application to the cloud-native computing environment.

  • Replatforming (or revision)

In essence, this type of cloud computing means slightly changing non-critical applications. Restructuring is needed when rehosting is too little and refactoring is too much. Nevertheless, such changes to the application code require expert knowledge in how your application works and how it should be optimized for the cloud.

  • Retire (or rebuild)

When the application migration task is too hard, the application needs fundamental decomposition. In this case, retire can increase the software’s value by eliminating duplicated features and creating an entirely new offering of the SaaS platform. In this case, the developers should rethink the application’s key process: its workflows, integration, and main components.

  • Retain

This measure is like redecorating a house. Some options are not the subject of applications migration, and you simply leave them as they are. At a certain point in the future, you can take them to your new computing environment. Technically, it’s not a migration application but a demonstration of its successful strategizing and planning. With a comprehensive approach, you will inevitably see that not everything you had before is needed in the new computing system.

  • Repurchasing (or replace)

In this case, you ask a third party to move your computing environment to a SaaS platform. It saves your in-house team from managing infrastructure and covering maintenance problems. This third-party application should have the functions and capabilities relevant for your application but with necessary compliance to cloud requirements.