PSD.5:2 - Problem

A capacity calculation cannot show whose service standard should govern. A rich picture can reveal attributed concerns without estimating a failure probability. A scenario can expose a vulnerable condition without predicting how often it will occur. Treating any one of these as a complete account hides questions it was never built to answer.

Adding models does not automatically repair the loss. Two models may reuse the same data, employ incompatible units or populations, or label different quantities “risk”. Agreement can be duplicated error; disagreement can reflect different questions rather than a defect. A composite dashboard can conceal both.