We considered ease of use as crucial as it is known from literature, that perceived ease of use affects the perceived usefulness and, consequently, the usage of information technologies [ 47].
The unnecessary functions, which relate to usefulness, could affect the acceptance of wearable trackers (Davis et al. 1989; Preusse et al. 2016; Venkatesh et al. 2012).
Usefulness was not affected by Direct view in either of the cases.
The results show that the intention to use a technology is affected by the Usefulness, Ease of use and the Security of that technology.
According to the TAM, perceived usefulness and perceived ease of use both affect users' attitude toward using IT, which consequently affects the actual behaviors of users [ 29].
The findings indicate that organizational support and management support significantly affected perceived usefulness and intention to use.
Also individual innovativeness, attitude of confidence, perceived ease of use and perceived usefulness of precision agricultural technologies affected on the behavioral attitude and behavioral intention to use.
Furthermore, both perceived ease of use (β=.436, p<.001, R=.487) and perceived usefulness (β=.443, p<.001, R=.646) significantly affected nurse anesthetists' PM-DSS acceptance (R=.640).
This leads to increased interaction variation, which may create usability problems and affect usefulness.
Alharbi in [18] showed that perceived usefulness will positively affect users' attitude towards adopting Cloud Computing in Saudi organisations.
