Why do people use information technology? A critical review of the technology acceptance model.

Legris, P., Ingham, J., & Collerette, P. (2003). Why do people use information technology? A critical review of the technology acceptance model. Information & Management 40(40), 191-204.

Description:

The technology acceptance model measures user satisfaction to explain why people adopt the use of information technology.  Satisfaction is the sum of a person’s feelings and attitudes towards the factors affecting the innovation.  These factors have been grouped into three categories; uncontrollable, partially controllable, and fully controllable.  This model provides a foundation for measuring the impact of these external variables on internal beliefs, attitudes, and intentions.  Limitations of this method include the reliance on self-reported use.  This is an inaccurate measurement and can only be considered a relative indicator and a more accurate measurement of use should be used.  It also considers the use of information systems independently from organisational dynamics which other research has shown to have a great impact on the adoption of innovations.  While this model is a useful tool when implementing change, it needs to be incorporated into a broader change model that includes the social dynamics and encourages the adoption of the innovation. (Legris, Ingham, & Collerette, 2003)

Impact:

This model would be effective when used in conjunction with a broader model.  While TAM focuses on the satisfaction of the user; their feelings and attitudes towards the information system, it does not consider the bigger picture of social and organisational dynamics.  This model has grouped the factors that affect satisfaction according to their degree of control.  This aspect of the model is effective as it can highlight for the change manager where improvements can be made in the system to encourage adoption.