Modular Design
Domain: Software Engineering
🎯 Motivation
Breaking a system into independent modules. Each module does one thing well. Easier to build, test, and maintain.
📋 Concrete Example
Modules: auth.py (login), data.py (database), api.py (endpoints), utils.py (helpers). Each is independent, well-defined, and testable. Change auth.py without affecting data.py. Clean separation.
🔗 Analogy
Modular design is like a Lego city - each building (module) is separate. You can rebuild the police station without touching the hospital. Independent, interchangeable, maintainable.