Step into a realistic design interview where you'll tackle the Elevator System, a classic object-oriented design challenge faced by engineers at top tech companies. You'll work through a structured, multi-phase process that mirrors real-world interviews: gathering requirements, discussing design approaches and patterns, identifying core classes, and visualizing class relationships with UML diagrams. Each phase builds on the last, testing your ability to think critically, justify your choices, and communicate your design clearly.

You'll be guided through scenario-based questions that probe your understanding of OOP principles, design patterns, and system architecture. Expect to defend your decisions, adapt to follow-up questions, and refine your design as you progress, just like in a real interview setting.

Get ready to sharpen your skills in:

• Gathering and clarifying system requirements for complex, real-world problems.
• Applying OOP principles and design patterns to architect robust solutions.
• Identifying and defining key classes, their responsibilities, and interactions.
• Visualizing class relationships and system structure using UML diagrams.
• Communicating your design decisions under realistic interview pressure.

By the end, you'll be better equipped to approach object-oriented design interviews with confidence, clearly articulate your thought process, and deliver well-structured solutions to challenging system design problems.