Product design question
Build a valet service for hotels.
- Product design
- Medium
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What this question tests
Product design for a service-operations product: coordinating physical logistics, staff workflows, and guest experience.
How to approach it
- Clarify the user: hotel guests requesting valet versus valet staff managing vehicles, a two-sided internal service.
- Identify the core flow: guest requests car, staff retrieves it, and guest is notified when ready.
- Design for efficiency: staff app showing queue order and vehicle location to minimize retrieval time.
- Design for guest experience: simple request via app or kiosk, with real-time status updates.
- Define success as average car retrieval time and guest satisfaction with the valet experience.
What a strong answer includes
- Treats this explicitly as a two-sided internal tool, not just a guest-facing app.
- Proposes a concrete staff-side feature, like a queue-prioritization view to reduce retrieval time during peak checkout.
- Addresses a real edge case, like guests requesting the car with no advance notice during a rush.
- Uses an assumed metric, e.g. cutting average retrieval time from 12 to 6 minutes.
Common mistakes
- Designing only the guest-facing request screen and ignoring staff workflow efficiency.
- Ignoring peak-time congestion, like mass checkout in the morning.
- Not defining a clear metric for retrieval time or satisfaction.
Likely follow-up questions
- How would you handle a surge of requests during peak checkout time?
- How would staff prioritize which car to retrieve first?
- What would you measure to know the system is working well?
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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