Analyzed the dormation system and its factors in the cognitive viewpoint. And presented the concept of active information services which has the posltive prduct~on rules. Information libranan is also an dormatbn professoml, so shdd functmn as an active and offensive information systesn between the information and the user. Through this role chang.mg, anticipated the chang.mg of the concept and the research activity w i t h the total information searchmg and pvidmg processes.