Product design question
If Google wanted to expand Google Maps into indoor navigation for malls and airports, how would you prioritize the features?
- Product design
- Hard
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What this question tests
Prioritization for a technically complex expansion, sequencing features based on core value and technical feasibility.
How to approach it
- Define the core user need indoors, reliable turn by turn navigation without GPS, which works outdoors but fails inside buildings.
- Prioritize the foundational capability first, accurate indoor positioning using WiFi or Bluetooth beacons, before any feature layer.
- Sequence next features, like store or gate level search and points of interest, once positioning is reliable.
- Defer lower priority features, like personalized recommendations or AR overlays, until the core navigation experience is solid.
- Define a success metric, such as indoor route completion rate or reduction in users getting lost, measured through support contacts or session behavior.
What a strong answer includes
- Sequences positioning accuracy as the true foundation, recognizing that no feature works without reliable indoor location first.
- Explicitly defers flashier features, like AR navigation, until the core capability is proven, showing prioritization discipline.
- Names a concrete success metric, like completion rate for indoor routes, that reflects the real user problem being solved.
Common mistakes
- Prioritizing flashy features like AR overlays before solving the harder, foundational positioning problem.
- Ignoring how partnerships with mall and airport operators are needed to get accurate indoor maps.
Likely follow-up questions
- How would you get indoor map data from malls and airports?
- How would you measure positioning accuracy in the field?
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- How do you design a camera for the elderly?Google · Product design · Medium
- 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
- How would you improve Google Home?Google · Product design · Easy
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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