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Low Level Design

The Hospital Management System

Design and implement a hospital management system covering patients, doctors, appointments, prescriptions, and billing with secure scheduling and record management.

Interview Details

Get ready to dive deep into the object-oriented design of a Hospital Management System, a staple problem for software engineering interviews where correctness meets real-world constraints. This interview experience targets your low-level design muscles: modeling healthcare entities, taming scheduling complexity, capturing medical records and prescriptions safely, and building a reliable billing pipeline.

What You'll Practice:

  • Sharpen your ability to gather and refine nuanced, domain-heavy requirements.
  • Design a scalable, conflict-aware scheduling architecture.
  • Apply key object-oriented principles (encapsulation, inheritance, polymorphism) to clinical and administrative entities.
  • Employ design patterns (Factory, Strategy, Observer, Repository, Unit of Work) to keep logic modular and testable.
  • Illustrate and explain class relationships and workflows through UML class and sequence diagrams.

By the end of this interview, you’ll be better equipped to handle complex, stateful systems; communicate trade-offs clearly; and deliver precise, privacy-aware, object-oriented designs ready for real-world evolution.

Get ready to dive deep into the object-oriented design of a Hospital Management System, a staple problem for software engineering interviews where correctness meets real-world constraints. This interv...

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Interview Guidelines

The interviewer simulates a real-world interview an adapts accordingly.

Ask for hints or clarifications if you're stuck.

What to expect

35 Responses
Diagramming tool

Built to Simulate the MAANG Experience

Prep for Every Loop

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Practice explaining complex technical concepts verbally to build confidence and refine your communication skills.

Detailed Analysis

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Unlock insights that highlight your weaknesses and gives you sample responses.

Instant, Actionable Feedback

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Receive immediate, targeted guidance on solution correctness, complexity, and approach.

Interactive Environment

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Hone your coding logic in an editor and bring your system designs to life with an integrated diagramming workspace.

Tailored to Your Preferences

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Get relevant practice scenarios for your role and experience, whether you're a junior or an engineering manager.