QUALIFLEX
Updated 2026-08-11
INTRODUCTION
English translation pending.
CORE DEFINITION
QUALIFLEX is a multi-criteria decision method based on rankings. Alternatives are evaluated on each criterion, and the evaluations may be ordinal or expressed as intervals rather than precise values. The method enumerates the possible complete rankings of the alternatives and computes, for each ranking, a consistency index measuring how well it agrees with the preference information derived from the criteria and from pairwise judgments. The ranking with the highest consistency is selected, and partial rankings can be used where several are equally consistent. Enumeration limits the number of alternatives.
SCAFFOLDING EFFECT
Reduce cognitive load
- Use interval evaluation: express criterion values as ranges when precise numbers would be false precision. - Use ranking enumeration: compare candidate orderings rather than scoring alternatives individually. - Use consistency index: judge each ordering by how well it agrees with the stated preferences.
Anchor fast decisions
When evaluations are ordinal or imprecise, computing a score per alternative requires inventing cardinal values that the information does not support. Working with complete orderings instead uses only the comparisons the information can justify, and the consistency index measures agreement rather than distance, which suits ordinal input. Enumerating orderings also makes the trade-offs explicit, because the selected ranking can be compared with the alternatives it displaced. The approach is limited by combinatorial growth, since the number of orderings rises factorially.
MINIMUM ACTION
In progress 0/1Practice this model in one real situation:
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Source support: Explicit
- pubmed.ncbi.nlm.nih.govhttps://pubmed.ncbi.nlm.nih.gov/36034766/verified
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