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Application Migration Strategy to CLOUD

In this article, we will learn Application Migration Strategy to Cloud Application Migration Strategy and Theoretical 7-step model of migration to the cloud.
Submitted by Aleesha Ali, on June 08, 2018

Rehost:

Rehosting an application to the cloud without making changes to its architecture or code.

Refactor:

Involves application code and configuration changes for connecting the application to new infrastructure services.

Review:

Modifying or extending the existing code base to support legacy modernization requirements, then use rehost or refactor options for deploying to the cloud.

Rebuild:

Involves rebuilding the application on a provider’s application platform. It discards code for an existing application.

Replace:

Involves discarding of an existing application or set of applications and uses commercial software delivered as a service.

Migrate an Application to the Cloud

A few ways to migrate an application to the cloud:

  • Rehost on infrastructure as a service (IaaS)
  • Refactor for the platform as a service (PaaS)
  • Revise for IaaS or PaaS
  • Rebuild on PaaS
  • Replace with software as a service (SaaS)

Theoretical 7-step model of migration to the cloud

  1. Conduct cloud migration assessments.
  2. Isolate the dependencies.
  3. Map the messaging and environment.
  4. Re-architect and implement the lost functionalities.
  5. Leverage cloud functionalities and features.
  6. Test the migration.
  7. Iterate and optimize.

Migrating an application to the cloud can be a challenge to organization with

  • IT policy formulation
  • Organizational politics and culture
  • Security, compliance, and SLAs management




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