Gartner Research

Measure Three Key Factors That Affect Mainframe Migration Cost and Risk

Published: 20 May 2014

ID: G00262029

Analyst(s): Dale Vecchio


The success of mainframe migration projects is a result of understanding the size, complexity and heterogeneity of the application. These three criteria will help CIOs understand the appropriate modernization approach and platform selection.

Table Of Contents
  • Key Challenges



  • Determine the Size, Complexity and Heterogeneity of a Proposed Mainframe Application
    • Defining Application Size
    • Defining Application Complexity
    • Defining Heterogeneity
  • Use Pace Layering to Begin Partitioning Applications and Identifying Potential Modernization Approaches
  • Apply Gartner's TIME Model to Make More Informed Modernization Decisions

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