This research studies the relation between information quality management in an information system and performance at the strategic level of the organization. This relation includes the "usefulness" which is an aspect of information quality management and organizational strategy’s benefits. Through a quantitative analysis, this study demonstrates that attention to the improvement of information usefulness identified as a significant explanatory variable may improve organization benefits. Differentiation found among stakeholders in different roles was also examined in this study. Unexpected differences in the perception of the usefulness were, however, observed between stakeholders in the service sector, industry and other sectors. The data analysis allowed us to measure the relation between user perception of information usefulness in the marketing information system (MIS) and perception of the strategic benefits. Although this study is adapted to a marketing context and it applies essentially to marketing information used in production or servuction, the impact of the usefulness of this information is naturally situated at the strategic level of the company.