Abstract
This study adopts social identity theory (SIT) to examine the post-adoption of computers using a research model that extends the theory of planned behavior (TPB) with two organizational cultural factors. Individual attitudes toward using computers and perceived behavioral control are TPB personal factors, while subjective norms can be viewed as the social factor. Empirical findings from 400 Arab end-users show that openness to superior-subordinate relationships (reducing organizational boundaries) significantly influences current computer usage only through personal factors. In contrast, openness to superior-subordinate relationships significantly influences continued use of computers through personal and social factors. However, openness to work communication (reducing communicative boundaries) does not significantly influence either current computer usage or continued use of computers through TPB beliefs. The implications for research and practice, and the limitations of this study, are discussed accordingly.