How do you design for a complex enterprise tool used all day by expert users, such as a logistics dispatch system?
What the interviewer wants to hear
- Contextual inquiry and shadowing in the real environment
- Optimise for efficiency: density, shortcuts, bulk actions
- Respect existing workflows and muscle memory
- Handle edge cases, errors and high-stakes actions
- Measure time on task and errors; involve users iteratively
Model answer
I start with contextual inquiry: watching dispatchers do real work in their environment, because experts do many things they cannot describe in an interview. I map the workflows, frequencies and the edge cases that cause stress. Design priorities differ from consumer apps. Efficiency matters more than first-time ease, so information density, keyboard shortcuts, bulk actions, saved filters and fast search are important, while new users still get help through clear labels. I respect existing muscle memory and change workflows gradually, with clear communication. High-stakes actions need clear states, confirmations or undo, and errors must be very clear. I measure success with time on task, error rates and how often users need workarounds, and I keep a panel of power users to test prototypes with real data, since fake data hides complexity.
Can you answer it under time pressure?
Take a timed hard round and get scored on every answer.
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