Gartner Research

Decision Point for Choosing a Cloud Migration Strategy for Applications

Published: 20 November 2018

ID: G00361356

Analyst(s): Traverse Clayton

Summary

When moving application workloads to cloud platforms, organizations must choose among five distinct strategies: rehost, revise, rearchitect, rebuild and replace. This research helps technical professionals weigh the trade-offs of each and select the right one for their goals and priorities.

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 Factors

Alternatives

  • Rehost
    • When to Rehost
  • Revise
    • When to Revise
  • Rearchitect
    • When to Rearchitect
  • Rebuild
    • When to Rebuild
  • Replace
    • When to Replace

Future Developments

  • Container Portability
  • Platform Portability
  • VM Portability
  • Code Portability
  • Data Portability

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