ChoiceAnswer

Wire discriminator identifying a categorical answer.

Label selected from the options supplied in Choice.criteria.

Probability assigned to each candidate label, keyed by label name.

The complete distribution is retained so applications can use a confidence measure or risk policy different from the provider's.

Scalar certainty from 0 to 1 in the selected label.

Each provider documents how it derives confidence. Thresholds should be chosen according to the consequences of an incorrect automated decision.