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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