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Application migration describes the structured transfer of software applications between hosting environments, platforms, or cloud providers to improve scalability, cost efficiency, security, or compliance. The process covers assessment, choice of migration pattern (rehost, refactor, replatform, rearchitect), testing, data migration and cutover planning. Pro…
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Application migration is the planned transfer of an application to a different technical, organizational, or operational environment.
The approach grew from modernizing mainframes and data centers and was systematized through cloud migration programs. Rehost, replatform, and refactor became decision frames for different depths of change.
An application is considered with dependencies, data, operating requirements, and risks. Depending on the goal, the path ranges from near-identical relocation to redevelopment and is validated step by step.
Transfer into a new target environment.
Technical renewal for operation and changeability.
An external service, dataset, or contract the application needs.
Application migration provides a path away from aging environments; effort, data consistency, and retained legacy constraints should be visible before choosing a strategy.
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