Your question is Company-wide Dashboarding System. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Design a company-wide dashboarding system with site-level and master views.
Asked in the round 5 stage as a verbal HLD question. The candidate used an Amazon FCs and scanners analogy, and discussed scanner failures and partial data.
Explain how data is ingested, validated, aggregated, stored, and served to both site-level and master views. Address how the system identifies stale or anomalous data, represents partial results, and prevents one failing site or scanner from corrupting company-wide metrics. Clarify requirements before proposing the design, and discuss online versus batch processing, consistency, observability, and recovery.
