This paper presents the final results obtains in the development framework of a query Planning Model Information Quality in Iformation Itegration Systems, whose objective is to determine the necessity characteristics for considering the information in the query planning process in Mediators-Based Information Systems. A exploration of information criteria which could deal in query planning are proposed; and a model and based in it a query planning model is proposed too. In specific topic driven information quality in the query planning, there are few information in the scientific community, hence is important that the analysisand the way of focusing the problem, the proposed models and the partial results showed in this paper, positively to contribute and to make stronger this investigation area.