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Clickstream and Session Schema

A medium 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
medium
Seniority
senior

Interview Prompt

We run a large e-commerce site with web and mobile apps. We capture every click, page view, and product interaction as raw events. Users browse from multiple devices, and we need to stitch their activity into sessions and build a complete picture of the purchase journey. We get about 600 million events per day. Design the data model.

How This Interview Works

  1. Read the vague prompt (just like a real interview)
  2. Ask clarifying questions to the AI interviewer
  3. Write your data modeling solution with real code execution
  4. Get instant feedback and a hire/no-hire decision