Product design question
How would you redesign a Microwave?
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What this question tests
Tests everyday product design thinking applied to a familiar physical object: finding real usability pain points and proposing focused, feasible improvements.
How to approach it
- Identify users and use cases: quick reheating, defrosting, and occasional full cooking, each with different pain points.
- Identify pain points: uneven heating, confusing time and power settings, difficulty cleaning, and no easy way to know when food is actually at the right temperature.
- Prioritize the biggest, most common pain point: uneven heating and guesswork on time and power, which affects nearly every use case.
- Propose the solution: a built-in temperature sensor with a smart preset system that adjusts time and power automatically based on food type and target temperature, rather than manual guessing.
- Consider simplicity: keep a manual override for advanced users, since not every user wants to rely on presets.
- Define success: reduction in reheating errors (cold spots, overcooking) and user-reported ease of use versus the current dial-and-guess model.
What a strong answer includes
- Focuses on the most universal pain point, uneven heating and guesswork, rather than a flashy but low-value feature like app connectivity.
- Proposes a concrete mechanism, a temperature sensor driving automatic presets, instead of a vague 'make it smarter' statement.
- Preserves a manual mode for users who do not trust or want automation, balancing simplicity with improvement.
- Defines success around a measurable usability outcome (fewer heating errors) rather than a feature-count metric.
Common mistakes
- Jumping to unnecessary smart-home or app connectivity features that do not address the core physical usability problem.
- Ignoring cost and manufacturing feasibility when proposing a sensor-based redesign.
Likely follow-up questions
- How would you price this redesign to stay competitive with basic microwaves?
- How would you test whether the automatic preset actually improves outcomes versus the current dial system?
More product design questions
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- Design a refrigerator for the blind.Google · Product design · Hard
- 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