Pareto optimality

optimality criterion for optimization problems with multi-criteria objectives (multi-criteria optimization). A state $A$ (a set of object parameters) is said to be Pareto optimal, if there is no other state $B$ dominating the state $A$ with respect to a set of objective functions. A state $A$ dominates a state $B$, if $A$ is better than $B$ in at least one objective function and not worse with respect to all other objective functions.