Question
Walk through a system you made more reliable after a serious failure. Cover the failure boundary, your diagnosis, the design change you owned, the rollout, and the evidence that recovery improved. ## Preparation - Write the user or stakeholder, the constraint, and the decision in one sentence each. - Choose one measurement or observable fact that can support the answer. - Name one alternative and the reason it was not selected. ## Review checklist 1. Did I state the concrete constraint before describing the solution? 2. Did I separate my own decision and work from the team's work? 3. Did I name evidence or a measurement rather than relying on confidence? 4. Can I answer every follow-up without changing the original facts? ## Staged follow-ups 1. Draw the failure path before the repair. 2. Name the rejected repair and why you rejected it. 3. Explain rollback when the repair itself fails. 4. Describe one remaining failure mode.