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  • IBM i Modernization – Life After RPG

    March 30, 2022 Jose Caso Jacobs

    How an IBM i business approaches legacy application modernization doesn’t differ from application modernization on any other platform. Well, there is one slight difference. Many of those IBM i businesses have the added weight of replacing working legacy applications for the simple fact that RPG fell out of mainstream coding decades ago. The code is efficient and perfectly runs mission-critical apps, but there are fewer and fewer programmers around to maintain that code.

    Colleges and universities stopped teaching RPG before Y2K was even a concern. Developers that learned RPG in the 1980s and early 1990s were 30 or 40 years …

    Read more
  • Thoroughly Modern: DevOps Refactoring Of RPG Applications with RDi

    January 11, 2021 Ray Everhart

    Regardless of your current situation – namely, the size and age of your codebase – there is great value to be gained from refactoring. In this article, I will explain what refactoring is, provide the business justification, and describe some refactoring best practices.

    So what is refactoring? In the strictest sense of the word, refactoring is when you improve the quality of code without changing what it does. Refactoring is not about enhancements or bug fixes, but code quality and making the code more efficient and maintainable. Code refactoring also improves readability, which makes QA and debugging go much more …

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  • Guru: RDi and Refactoring

    April 16, 2018 Ted Holt

    When I first heard the term refactoring, I thought, “So that’s what they call it.” I had been refactoring for years, my only tools being SEU and a compiler listing. I learned a long time ago that refactoring is often necessary to enhance code, especially poorly written code. Another reason I often refactor is to better understand poor code.

    To refactor means to rewrite source code without changing its external behavior. Due to all the “legacy” source code (RPG II, RPG III, fixed-form RPG IV, OCL, etc.) in IBM i shops, the ability to refactor source code is a …

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