Abstract— This article analyzes experiment results regarding subjective perception issues. Software quality models, since the first publications on this subject, propose a prescriptive approach. Although most of the models are well explained and applicable, they still do not describe the real process taking place in a user’s mind. Behavioral economics, psychology, philosophy and cognitive sciences have developed several theories regarding perception, the valuation of goods and judgments formulation. An application of these theories to software engineering and an intentional management of the user’s perception processes can significantly increase their satisfaction level and general quality grade assigned by the user to the software product. In this article we concentrate on a part of the software quality perception process: the history effect and its influence on software quality perception.