Variables

Sources

Perceived usefulness

Davis (1989)

Perceived ease of use

Davis (1989)

Safety

Wu (2011)

Top management’s support

Wang et al. (2010)

Competitive pressure

Wang et al. (2010)

Cooperation pressure

Wang et al. (2010)

Satisfaction

Roca et al. (2006)

Continuous use intention

Roca et al. (2006), Bhattacherjee (2001)