ABAP OOP Design Patterns — Part 2: Factory...

ABAP OOP Design Patterns — Part 2: Factory, Observer, and Decorator Patterns in Real SAP Systems If you’ve been writing ABAP long enough, you’ve probably inherited a codebase where every business rule is buried inside a 3,000-line function module, and adding a new requirement means copy-pasting logic you’re not even sure is correct. That’s not a skills problem — it’s an architecture problem. In Part 1 of this series, we explored how the Strategy Pattern helps you swap business logic cleanly with