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  • Guru: Procedure Driven RPG And Adopting The Pillars Of Object-Oriented Programming

    February 19, 2024 Gregory Simmons

    The four pillars of object-oriented programming (OOP): abstraction, encapsulation, inheritance, and polymorphism, were not created at a single point in time. They evolved gradually over several years, with contributions from various researchers and programmers. Here’s a brief overview of their evolution:

    1. Abstraction:

    • Alan Kay is credited with introducing the concept of abstraction in the 1960s with his work on Simula.
    • Abstraction gained further traction with the development of Smalltalk in the 1970s.
    1. Encapsulation:

    • David Parnas, in his 1972 paper “On the Criteria To Be Used in Decomposing Systems into Modules,” laid the groundwork for encapsulation by emphasizing the importance of
    …

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  • Value Stream Management: Bringing Lean Manufacturing Techniques To IBM i Development

    September 20, 2021 Andrew Ireland

    When resources are tight, it is important to optimize their usage and maximize the business value they deliver. This is the very foundation of what is called lean manufacturing or just-in-time manufacturing, which more than a few IBM i shops know a thing or two about because this platform has been used for decades by process and discrete manufacturers to automate their businesses.

    The move toward DevOps has allowed software engineers to adopt many of the best practices developed by manufacturing over the last 100 years. These include automating the flow of code, a repository of standard components and a …

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