Kaura tana auna kaina wace aji wani modulu ya dogara da wani; hade tana auna kaina wace aji abubuwa jiya modulu suke hade tare. Burin: kaura kaifi, hade babbar.
Me yasa ya isa
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HIGH cohesion → a class does ONE well-defined job, parts relate strongly ✅
LOW coupling → modules interact through small, stable interfaces ✅
