Design a Product From Scratch

Summary

A classic prompt like 'design an app for X' testing structured thinking under ambiguity — the interviewer cares far more about your process than your final idea.

• 1Practice a repeatable structure: clarify the goal, pick a user, identify their problem, brainstorm, prioritize, define success.
• 2Time yourself — most of these need to fit in 15-20 minutes including discussion.
• 3Practice out loud with another person, not just in your head.