During last decades, a large number of authors have addressed the issue of Information System performance evaluation. Most of complexes and classifications of criteria for evaluation of Information System functionality and successfulness in organization are defined. In this field of interest, several studies stand out, such as DeLone and McLean, proposed by Bailey and Pearson, referred by Avison and Fitzgerald, Burch and Grudnitski. Evaluation criteria of Information System functionality performances referring to the user’s satisfaction with Information System in the frame of TQM concept (Total Quality Management) are considered as Information System top validation.