System Design Case Study

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System Design Case Study

## System Design Case Study

System design interviews ask you to architect a real-world backend service. You will be evaluated on requirements, tradeoffs, data model, API design, and scalability.

Choose a system such as a URL shortener, ride-sharing dispatch service, or notification platform. Document the problem, API, data model, core logic, and how the system scales.

Use the sections below to build your case study.

Problem Statement & Requirements

Pick a real-world backend system (e.g. a URL shortener, ride-sharing service, or notification system). State what it must do and what constraints apply.

0 / 150 characters(150 more required)

API Design

Define the key API endpoints. Include method, path, request body, and response shape.

0 / 120 characters(120 more required)

Data Model & Storage

Design the database schema or data model. Justify your choice of SQL vs NoSQL for the core data.

0 / 150 characters(150 more required)

Core Service Logic

Describe the main processing steps for the critical path (e.g. the redirect flow). Include any async processing or queues.

0 / 150 characters(150 more required)

Scaling & Reliability

How does the system scale under load? Address horizontal scaling, caching, sharding, or replication strategies.

0 / 150 characters(150 more required)

Progress

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