2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/73919Proposed is a new formal approach for solution of extreme multi-criteria problems transforming them into single-criterion mathematical models, without any additional information. Transforming rules are based on comparison standards and intervals between these standards and goal function values, corresponding to problem solution. Pareto-optimality of these solutions is proved by a number of theorems. Examples illustrating efficiency and universality of this approach are presented.12 pages, 2 figuresOptimization and Control90C29(Primary); 90C46, 49K27(Secondary)text