Default fault assignment in a three-stage process.
Question: In a pipeline with stages X → Y → Z, suppose you replace the outputs of both X and Y with ideal outputs, but the final mistake on the validation set still remains. Which stage should be blamed?
Sample answer: The error should be attributed to stage Z.
Key points:
- If perfect outputs from X and Y do not remove the mistake, the remaining problem is assigned to Z.
Rubric: The response must explicitly name stage Z.
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