Revista Latinoamericana Y Del Caribe De La Associacion De Sistemas De Informacion


IS literature suggests that continued usage of ERP systems in an organization is not guaranteed even after the stabilization period. Frequently, users choose not to use the full functionality of the system or even stop using it in favor of other non-integrated applications. We propose and empirically test an extension of the TAM model, in which "intention to use" is replaced by "intention to use effectively", and "procedural justice" is added to capture the long-term subjective effects of the implementation process. Results indicate that after several months after the ERP go-live, procedural justice still seems to have a significant effect on users' perceptions of easy of use and utility.