proposes that an individual's intention
to use or acceptance of an information system/technology in
question is determined by two prominent beliefs: perceived usefulness
(PU) and perceived ease of use (PEOU). PU is defined as “the degree to
which a person believes that using a particular system would enhance
his or her job performance”
noted
that the basis of PU is drawn from the use-performance contingency
in expectancy theory, which posits that “a system that does not help
people perform their jobs is not likely to be received favorably in spite
of careful implementation efforts” (p. 537). By contrast, Davis defines
PEOU as “the degree to which a person believes that using a particular
system would be free of effort”