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Technology Acceptance Model Essay

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Origin and overview of TAM The technology acceptance model (TAM) (Davis F. D. ,1989; Davis, F. D. Bagozzi, 1989), is one of the various models that IT/IS researchers have used to predict and explain the underlying factors that motivate users to accept and adopt new information technology systems. This model (Figure 4.3) is derived from the theory of reasoned action (TRA) (Fishbein and Ajzen, 1975; Ajzen and Fishbein, 1980). According to TRA, the individual attitudes and subjective norms influence the user’s behavioural intention, which, in turn, influences his/her actual behaviour. Building upon this, TAM was proposed to explain and predict users’ acceptance of IT and IS systems by assuming that the constructs - perceived ease of use (PEOU) and perceived usefulness (PU) - are the key determinants of IT and IS acceptance behaviour. Davis (1989, p.320) defined perceived usefulness as “the degree to which a person believes that using a particular system would enhance his or her job performance”, and defined perceived ease of use as “the degree to which a person believes that using a particular system would be …show more content…

2007). Although TAM is criticised for ignoring the social influence on technology adoption (Fu et al., 2006; Mathieson, 1991), social and human factors could be integrated with TAM to improve its predictive power (Taylor and Todd, 1995; Venkatesh and Davis, 2000). Venkatesh and Davis (2000) extended TAM by integrating social and cognitive variables such as experience, job relevance, image, and voluntariness. This extended model is referred to as TAM2. Then extended model Unified Theory of Acceptance and Use of Technology (UTAUT) (Venkatesh et al., 2003) integrate elements across eight prominent user acceptance models (TRA, TAM, the Motivational model, TPN, a model combining the Technology acceptance model and the T PB; MATH, DOI, and the Social cognitive

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