A Guidance Framework for Architecting Portable Cloud and Multicloud Applications


Archived Published: 16 December 2016 ID: G00302796

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Summary

Technical professionals must be wary of locking their applications into a particular cloud provider's service. This report provides guidance on creating applications that are portable across cloud services, and on creating multicloud applications that span these services.

Table of Contents

  • Problem Statement
  • The Gartner Approach
  • The Guidance Framework
    • Step 1: Assess Portability and Multicloud Priorities for Your Application Portfolio
      • Assess Cloud Applications in Terms of the Hierarchy of Portability and Multicloud Needs
      • Determine Application Portability Priority
      • Understand Multicloud Application Architecture
      • Consider the Portability and Multicloud Scenarios for Each Application
    • Step 2: Understand and Avoid the Portability Anti-patterns
      • Lock-In to High-Productivity Application Platforms
      • Lock-In via Interface Dependencies
      • Lock-In to Proprietary Cloud Services
    • Step 3: Select Enabling Technologies for Portable and Multicloud Architectures
      • Understand How Cloud Delivery Models Impact Contextual Independence
      • Choose a Portable Outer Architecture to Gain Contextual Independence
      • Multicloud Toolkits
    • Step 4: Implement Application- or Service-Level Contextual Independence
      • Favor Modular and Composite Design
      • Choose Rightsize Application and Service Deployment
      • Commit to Frequent Refactoring
      • Run Your Own Backing Services
      • Prove Contextual Independence Works via Continuous Delivery
    • Step 5: Maintain Vigilance in Production
  • Risks and Pitfalls
    • Pitfall 1: Overengineering Portability Without a Business Case
    • Pitfall 2: Investing in Future Value That Never Materializes
    • Pitfall 3: Home-Brewed Solutions Cost Too Much to Implement and Maintain
  • Gartner Recommended Reading
© 2016 Gartner, Inc. and/or its Affiliates. All Rights Reserved. Reproduction and distribution of this publication in any form without prior written permission is forbidden. The information contained herein has been obtained from sources believed to be reliable. Gartner disclaims all warranties as to the accuracy, completeness or adequacy of such information. Although Gartners research may discuss legal issues related to the information technology business, Gartner does not provide legal advice or services and its research should not be construed or used as such. Gartner shall have no liability for errors, omissions or inadequacies in the information contained herein or for interpretations thereof. The opinions expressed herein are subject to change without notice.

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