Product design question

How would you design a recommendation engine page for Myntra (fashion e-commerce) for its Product Detail Page for a newly onboarded customer?

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What this question tests

Cold-start recommendation design: solving personalization for a user with no purchase history, a common hard product design problem.

How to approach it

  1. Identify the challenge explicitly: a newly onboarded customer has no purchase history, so standard collaborative filtering recommendations will be poor or empty.
  2. Identify available signals despite the cold start: the specific product page they are viewing, any onboarding style quiz answers, device type, and broad demographic or location signals.
  3. Design the recommendation logic: lean heavily on item-to-item similarity (visually and category similar products to the one being viewed) rather than user history based collaborative filtering.
  4. Add a lightweight signal capture: a quick style or size preference prompt at signup that seeds early personalization without requiring purchase history.
  5. Prioritize item similarity and the style quiz over pure popularity-based fallback, since popularity alone ignores the user's actual expressed interest on this page.
  6. Define success as click-through rate on recommended items for new customers, benchmarked against the recommendation performance for returning customers.

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