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Fahmi Ben Khalifa
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Architecture
Notes on system design, code structure and the trade-offs behind them.
Posts in Architecture
2025.10.05
SOLID: The First 5 Principles of Object-Oriented Design
SOLID is a set of five design principles that make object-oriented code easier to extend, test and maintain. I lean on them constantly — not as dogma, but as a checklist when a class starts doing too much.
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