This IDC PlanScape explores the common approaches to application modernization that prepare organizations against impending risks and allow them to adapt to emerging technologies. Application modernization is no longer a choice but a necessity for organizations aiming to reduce risks, improve efficiency, and maintain competitive positioning. By embracing cloud technologies and modern development practices, CIOs can transform legacy applications into strategic assets that drive long-term value for their organizations.According to Gerald Johnston, adjunct research advisor with IDC’s IT Executive Programs (IEP), “Application modernization is not just about migrating to the cloud; it’s about strategically transforming legacy systems to unlock scalability, agility, and innovation. Whether through re-factoring, rewriting, or rehosting, the ultimate goal is to align IT capabilities with evolving business demands while future proofing for emerging technologies.”
IDC PlanScape Figure
Executive Summary
The Case for Modernization
The Drivers for Change
Why Are Application Modernization Approaches Important?
What Are Application Modernization Approaches?
Who Are the Key Stakeholders?
How Can My Organization Take Advantage of Application Modernization Approaches?
Lift and Shift (Rehosting)
Lift-and-Shift Process
Relative Benefit and Cost
Example in Practice
Move and Modernize (Re-Factoring)
Move-and-Modernize Process
Relative Benefit and Cost
Example in Practice
Modernize then Move (Re-Platforming)
Modernize-then-Move Process
Relative Benefits and Costs
Example in Practice
Rewrite to the Target Platform
Rewrite-to-the-Target-Platform Process
Rewrite on Modern Platform
Rewrite-on-Modern-Platform Process
Relative Benefits and Costs
Example in Practice
Advice for Technology Buyers
Strategic Advice for CIOs
Ongoing Modernization
Cloud-Agnostic Architectural Standards
Tactical Advice for CIOs
Related Research
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