Maintain and Modernize the Mainframe

Maintain and Modernize the Mainframe

Learn how to sustain critical mainframe applications while implementing modernization strategies that bridge COBOL with cloud, APIs, and agile tooling.

Course Objectives

  • Understand the core architecture of IBM mainframes and legacy COBOL systems.
  • Apply proven techniques for maintaining and enhancing existing codebases.
  • Integrate mainframe systems with modern tools and APIs.
  • Explore replatforming, refactoring, and hybrid cloud approaches.
  • Evaluate modernization tradeoffs and project planning strategies.

Course Overview

This course equips developers, analysts, and IT leaders with the skills to sustain mission-critical mainframe systems while introducing scalable modernization strategies. Participants will explore how to support and evolve COBOL-based applications using DevOps tools, RESTful interfaces, data virtualization, and cloud-native patterns—all without disrupting legacy reliability. Practical case studies and tooling demos provide actionable insights for every modernization stage.

Sample Module: Strategies for Incremental Modernization

This module introduces common modernization paths—code refactoring, API layering, screen scraping, and replatforming. Learners will assess system readiness and explore phased approaches to reduce risk and cost.

Lesson: Wrapping COBOL Logic in REST APIs

In this lesson, learners will explore techniques to expose legacy COBOL functions as RESTful services using middleware and API gateways. This enables integration with web apps, mobile tools, and cloud-native workflows.

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