Design a high-throughput Inventory Management System
Last updated: July 25, 2025
Quick Overview
Design a high-throughput inventory management system handling millions of requests. Discuss consistency, availability, and performance trade-offs.
Walmart
System Design
Software Engineer
Walmart
July 25, 2025Software Engineer
System Design Round
System Design
Medium
797
4
861 solved
Design a high-throughput inventory management system handling millions of requests. Discuss consistency, availability, and performance trade-offs.
How to Approach This
- Start by clarifying functional and non-functional requirements with the interviewer.
- Estimate the scale: QPS, storage, bandwidth. This drives your design decisions.
- Draw a high-level architecture first, then deep dive into 1-2 critical components.
- Discuss trade-offs explicitly (e.g., consistency vs availability, SQL vs NoSQL).
- Address failure scenarios, monitoring, and how the system handles 10x traffic spikes.
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Practice System Design ProblemsSample Answer
Requirements
Functional Requirements
- Real-time Inventory Tracking: Track inventory levels at multiple Walmart locations in real-time.
- Order Management: Allow for placing, updating, and canceling ...
Capacity Estimation
For Walmart's inventory management system:
- Estimated Number of Transactions: Assume 10 million transactions per day, which translates to approximately 115 transactions per second.
- **Data Volum...
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