This study investigated the use of an information communication technology (ICT) system by organizational members in a higher education institution. Besides providing empirical support to critical mass theory in predicting technology use in organizations, the findings of this study revealed a cultural foundation of the theory. More specifically, this study found that technology use by supervisors and task interdependence contribute to technology use, and that organizational members from different subcultures perceive technology use by supervisors and task interdependence differently. [ABSTRACT FROM AUTHOR]