Since information technologies have become critical to business success as a tool for organizational innovation, successful implementation of information technology innovation is as one of the most crucial tasks for many organizations.
This study draws upon the technology acceptance model (TAM) as the theoretical basis and empirical findings for a pragmatic explanation of key factors affecting acceptance and diffusion of innovation. The data for this study have been collected from a survey of 280 potential users in a manufacturing firm implementing Inter-related innovation (Enterprise Resource Planning and Process Innovation) to test a TAM examining the hypothesized relationships among the following constructs: external variables(self efficacy, IT infrastructure, IT policy, participation, job relevancy, result demonstrability), perceived usefulness, perceived ease of use and behavioral intention to use.
The results of correlation and the multiple regression analysis show that job relevancy, perceived usefulness, self efficacy and IT infrastructure are the major predictors of behavioral intention to use ERP. The findings indicate that job relevancy and result demonstrability are dominant factors in explaining perceived usefulness and perceived ease of use, and that perceived usefulness has a strong effect on intention to use ERP. But relatively little support was found for the perceived ease of use to influence behavioral intention and to fully mediate external variables. The results also indicate that self efficacy and IT infrastructure have direct effect on behavioral intention without being mediated by perceived usefulness and perceived ease of use. Implication of the findings and future research area are finally discussed.
