The basic conception of TAM (See Figure 1) proposed by Venkatesh, Morris, Davis, and Davis (2003) was that the individual reactions to using information technology stimulated their intentions to use, which rendered the actual use of information technology. The actual use was correlated with the individual reactions to using information technology. Based on the basic conception, the TAM has experienced rapid development.
Basic concept underlying user acceptance models (Venkatesh, Morris, Davis, & Davis, 2003)