Gartner Research

Decision Point for Choosing a Cloud Application Migration Strategy

Published: 29 March 2016

ID: G00299768

Analyst(s): Eric Knipp , Richard Watson


Organizations are moving a growing share of application workloads to public cloud services. This Decision Point advises solution architects about how to select the most appropriate strategy for migrating an application to a public cloud provider.

Table Of Contents

Decision Point Question

Decision Overview

Decision Tool

Principles, Requirements and Constraints

  • Principles
  • Requirements and Constraints
    • Migration Goals and Priorities
    • Legacy Application Characteristics
    • Modernization Requirements
    • Development and Operations Skills Constraints
    • Migration Cost Considerations


  • Rehost
    • When to Rehost
  • Refactor
    • When to Refactor
  • Rearchitect
    • When to Rearchitect
  • Rebuild
    • When to Rebuild
  • Replace
    • When to Replace

Future Developments

Gartner Recommended Reading

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