A municipal water-meter portal draft from an LLM lists an acceptance criterion that “a renter may reset a landlord’s leak alert.” That rule is nowhere in the user story. Which defect is this?
Select an answer to reveal the explanation.
Short Explanation
It is like writing exam questions for a chapter that was never assigned. The model invented an acceptance criterion, so any tests built on it chase a rule that does not exist.
Full Explanation
A municipal water-meter portal draft from an LLM that lists an acceptance criterion that “a renter may reset a landlord’s leak alert” when that rule is nowhere in the user story is a hallucination that suggests tests for non-existent acceptance criteria. Civic utilities must not encode unauthorized access paths into AC through fluent invention. Bias from under-represented languages fails as the wrong defect class for an invented authorization rule. A reasoning error in sequencing portal workflow steps fails when the problem is a fabricated criterion rather than mis-ordered real steps. Non-determinism from high temperature fails as the primary label because the stem highlights content absent from the story. Exam caveat: invented AC are hallucinations even when they sound policy-plausible. Operational check: diff generated AC to the water-meter story, reject renter-reset claims, add “no invented authorization” constraints, and re-verify with a utilities privacy steward before civic UAT. Retain the municipal audit note so later testers can see why the decision protects public service quality and fairness. Retain the municipal audit note so later testers can see why the decision protects public service quality and fairness.