Several theories, such as the resource-based view (RBV) and the information systems (IS) success model ISSM), have provided inconclusive results on the impacts of IS on business processes and organizational performance. The current study reviews the effects of these theories in terms of IS resources, capabilities and qualities, and further proposes an integrated approach for examining organizational performance. Our integrated model was statistically tested by using a structural equation modeling (SEM) method. Our results provide an integrated view of the associations among theories and enhance the understanding of IS contributions to organizational performance.