Product design question
There is a small new grocery store in the city. They are doing well, and all the aisles are getting crowded. How would you solve it?
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What this question tests
Practical problem solving for a physical, operational constraint, not a digital product design question.
How to approach it
- Clarify the actual problem: is crowding hurting customer experience, safety, or throughput and revenue.
- Diagnose root cause: check whether crowding is concentrated at peak hours, specific aisles, or checkout lines.
- Consider low-cost fixes first: staggered restocking hours, better aisle layout, or a self-checkout addition before a physical expansion.
- Consider a data-driven fix: use foot traffic data to identify the worst bottleneck aisle and widen or reroute it.
- Weigh cost versus benefit: physical renovation is expensive for a small store, so prioritize cheap operational fixes first.
- Define success: reduction in average time in store during peak hours, or a customer complaint rate decrease.
What a strong answer includes
- Diagnoses before prescribing, checking whether the problem is peak-hour concentration versus store-wide crowding.
- Proposes low-cost operational fixes, like staggered restocking or self-checkout, appropriate for a small store's budget.
- Ties the fix to a measurable outcome, like reduced peak-hour dwell time, rather than assuming renovation is the only answer.
Common mistakes
- Jumping straight to a costly store expansion without considering cheaper operational fixes.
- No diagnosis of when or where crowding actually happens.
- Treating this like a big-box retail problem when it is explicitly a small store.
Likely follow-up questions
- What data would you want before recommending a fix?
- How would you validate the fix worked after implementing it?
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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