1. An industrial device management system comprising: an industrial device which operates in accordance with a parameter; obtaining means for obtaining evaluation values of operation result of said industrial device corresponding to a plurality of parameter values of the parameter; holding means for holding the evaluation values obtained by said obtaining means for each object to be processed by said industrial device; and optimization means for analyzing the evaluation values held by said holding means, and optimizing the parameter on the basis of at least one of sensitivity representing a change degree of the evaluation values upon the change in the parameter, and a variation amount of the evaluation values for each object to be processed.