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.
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