The Information technology are easily implemented and introduced to the organization clearly. Some information technology is very difficult to run. It has been the cost increases due to run failure. It is not known for sure why this phenomenon occurs clearly. However, the success of IS implementation in many studies argue that rests on the adoption decision of new information technology individual level. The purpose of this study tested to Rogers' diffusion theory optional adoption decision which accounts for an important part of the model is described by new information technology adoption. This process is utilization processes of individual levels in end-user computing environment that purpose. In this study, we assume that the success of information system implementation depends on the adoption decision of the individual level of new information technology. The optional adoption decision model describes the innovation adoption decision-making process within the social system. The purpose of this study is to investigate and analyze the empirical data about how you can describe the new information technology adoption decision-making process of individuals under the end-user computing environment