Assessing the quality of a delivered system has been one of the major challenges for researchers as well as for the practitioners (organizations). There is the need of a multidimensional instrument capable of measuring the quality of an information system, that instrument would provide valid information that helps an organization to take decisions in order to improve and assure the quality of its information systems. On the other hand, the majority of IS researchers are still not sufficient validating their instruments and there is the need of empirical findings.

This research-in-progress paper proposes a model to measure the quality of an information system and uses the statistical approach Partial Least Squares (PLS) for its validation.