aggregate-ranking

Purpose

Aggregate criterion or comparison results into an ordered recommendation under an explicit rule.

Input contract

required: [candidate_set, criterion_results, aggregation_rule]
optional: [tie_break_rule, missing_value_policy, uncertainty_annotations]
constraints: [criterion directions and scales must be declared; no silent imputation]

Procedure

1. Align candidate identifiers, criterion directions, units, and validity flags.
2. Apply the supplied aggregation rule without changing weights or directions.
3. Propagate missingness and uncertainty; apply the declared tie-break only after aggregation.
4. Return ordered candidates with component contributions and recommendation status.