Eval-Driven Specification

Golden datasets and test set ownership Interview Questions

26 questions. All 26 carry a written answer.

  1. #1What is a golden dataset and why does the PM usually own it?ConceptFoundational
  2. #2How do you construct a first golden set with no production traffic?CaseIntermediate
  3. #3Describe the composition of a golden set: what proportion should be edge cases?ConceptAdvanced
  4. #4How do you keep a golden set representative as your user base changes?CaseAdvanced
  5. #5Explain the risk of a golden set that engineering can see during development.ConceptAdvanced
  6. #6What is a holdout set and when would you use one for an AI product?ConceptIntermediate
  7. #7How do you handle labelling disagreement inside a golden set?CaseAdvanced
  8. #8Describe a process for adding newly discovered failure cases to the golden set.CaseIntermediate
  9. #9How large should a golden set be, and what determines the answer?CalculationAdvanced
  10. #10What governance do you need around who can edit the golden set?ConceptIntermediate
  11. #11Explain the relationship between the golden set and customer-specific quality complaints.CaseAdvanced
  12. #12How do you build a golden set for a feature handling sensitive personal data?CaseAdvanced
  13. #13Describe the tradeoff between a broad golden set and a deep one.ConceptAdvanced
  14. #14What does it mean for a golden set to go stale, and how do you detect it?ConceptAdvanced
  15. #15How do you use the golden set during a model migration?CaseAdvanced
  16. #16Write the documentation that should accompany a golden set.Artifact critiqueIntermediate
  17. #17Explain how customers could contribute to a golden set without leaking their data.CaseAdvanced
  18. #18What is the argument for maintaining separate golden sets per customer segment?ConceptAdvanced
  19. #19How do you prevent the golden set from becoming a proxy for a single loud customer?CaseAdvanced
  20. #20Describe the review cadence for a golden dataset.ConceptIntermediate
  21. #21What happens to your golden set when the product's scope expands?CaseIntermediate
  22. #22How would you measure whether your golden set actually predicts production quality?ConceptAdvanced
  23. #23Explain the difference between a golden set, a regression suite and a benchmark.ConceptIntermediate
  24. #24Critique a golden set built entirely from examples the team wrote themselves.Artifact critiqueIntermediate
  25. #25Who should be able to veto a launch based on golden set results?ConceptAdvanced
  26. #26Describe how you would build a golden set for a product I name.InterviewAdvanced