Three-Sided Marketplace Delivery Schema
A hard Data Modeling mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- Data Modeling
- Difficulty
- hard
- Seniority
- L6
Interview Prompt
We run a three-sided marketplace: consumers place orders from merchants, and couriers deliver them. Finance needs accurate revenue reporting. Operations needs delivery latency metrics. One order can be reassigned to a different courier if the first one cancels. Design the data model.
Summary
One order. Two deliveries. Revenue counted twice. Where is the bug in your schema?
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write your data modeling solution with real code execution
- Get instant feedback and a hire/no-hire decision