Product design question
How would you design a web search engine for children below 14 years old?
- Product design
- Hard
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What this question tests
Product design balancing safety, simplicity, and genuine usefulness for a young user segment.
How to approach it
- Clarify the age range, likely under 13, and the resulting legal and safety requirements, such as COPPA compliance in the US.
- Identify pain points: kids struggle with complex query phrasing and are exposed to inappropriate content in general search results.
- Prioritize content safety filtering over search sophistication, since parental trust is the entry barrier for adoption.
- Propose a curated, whitelisted content index for results, combined with simplified query suggestions for common school topics.
- Add a visual, less text heavy interface, since younger children respond better to icons and images than dense text results.
- Define success as parental approval rate and safe search compliance rate, with zero tolerance for inappropriate content leakage.
What a strong answer includes
- Names the specific regulatory requirement, COPPA, showing awareness of real constraints on products for children.
- Prioritizes a whitelisted content approach over filtering an open index, which is a stronger safety guarantee for this audience.
- Gives an illustrative number, e.g. assumes targeting zero inappropriate results in a sampled audit of 10,000 queries.
- Considers the actual usability needs of young children, such as visual, icon driven interfaces over text heavy results.
Common mistakes
- Ignoring legal requirements like COPPA that materially constrain what data can be collected from children.
- Proposing to simply filter the adult search index instead of a safer whitelisted content approach.
- No safety guardrail metric, focusing only on search quality or engagement.
Likely follow-up questions
- How would you ensure COPPA compliance specifically?
- How would you build and maintain a whitelisted content index?
- How would parents be involved in setup or oversight?
More product design questions
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- Redesign Twitter for eCommerce.Shopify · Product design · Hard
- How would you go about designing a new location sharing app for Google?Google · Product design · Medium
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Learn the skill behind it
Chapters of the AI PM course that teach what this question tests.
- Chapter 4: Discovery and strategy for AI products
- Chapter 7: AI UX and human oversight: design for a system that is wrong sometimes
- Chapter 14: Get the job: the AI PM interview loop