Code Room
System designHard
Question
Design an electronic health record (EHR) system for hospitals: store patient records, support clinician access across facilities, and meet strict privacy and audit requirements.
What a strong answer looks like
Clarify scale and constraints first. Propose a clean component breakdown, then go deep on the hard parts — data model, bottlenecks, consistency, failure modes — and name the trade-offs you are making.
Learn the concepts
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Run or narrate your approach, then ask the coach.