Object-Oriented Design & SOLID

This assessment rigorously evaluates your command of object-oriented design: the four pillars of OOP, the SOLID principles, the classic Gang of Four design patterns, UML class modeling, and the coupling/cohesion qualities that separate maintainable code from a tangled mess. It mirrors the design questions used in real technical interviews and architecture screens.

By completing this module you will discover how well you can reason about responsibilities, abstractions, and relationships between classes — and pinpoint exactly which principles or patterns to revise before your next interview or design review.