| Computer-based information systems are crucial to the strategy and functioning of most organizations but users still reject or underutilize systems that could be greatly beneficial if used to their fullest extent. Previous research has largely been fragmented and often inconclusive and so has provided few consistent solutions to this problem.;Empirical evidence in support of the model is found from analyzing survey data collected from 348 potential end-users of an office automation system being implemented at a midwestern defense establishment.;Belief about the ease of use of the system, belief about usefulness, affect, normative motivation, and belief about autonomy are found to influence usage intention in order from largest total impact to least. The direct normative pressure to comply comes from peers and has a greater impact on intention than the indirect or informational effect of normative motivation from senior management. The effects of most situational/controllable factors (pertaining to the system, task, users, and environment/context) on affect and usage intention are mediated by the beliefs and normative motivation and a number of relationships between these variables are identified.;This research investigates the relative importance of the factors believed to influence user acceptance of systems as well as the mechanisms by which acceptance is successfully influenced. An integrative model of user acceptance is derived from theory and research in information systems and social psychology. The model describes interrelationships between situational or controllable factors and attitudinal and social pressure variables culminating in intention to use an information system. |
