Your question is Database for Experiment Records. 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 database for users who want to record experiments.
Asked in the Technical 2 (System) stage. Explain the data model, storage choices, API access patterns, consistency requirements, and how the design could evolve as usage grows.
Address how users, experiments, variants, parameters, observations, and results relate. Discuss indexing, validation, versioning, authorization, backups, and handling concurrent edits. Clarify ambiguous requirements before proposing the design.