In summary, this literature review covered several models and theories that
addressed the issues of technology adoption and behavioral intention. Over time, as
research into technology has progressed, researchers have developed new models by
incorporating new factors into the existing models. It has been observed that no single
existing model is sufficient to answer the research questions of this current study. Hence,
the need for a new comprehensive model is evident. Scholars commented that the TAM
and the TPB are the two most widely used theoretical frameworks for explaining IT
usage behaviors (Igbaria, Iivari, & Maragahh, 1995; Ajzen, 1991).