“…The results showed that the users' perceived ease of use of the box lunch ordering system platform would significantly influence the perceived usefulness and would indirectly affect usage attitudes through the perceived usefulness, while the perceived usefulness would also directly affect usage attitudes. In the single model, the TAM's usefulness and ease of use are the factors that affect usage attitudes, and the usage attitude is the antecedent variables for the usage behavioral intentions, which is consistent with past researches (Davis et al, 1989;Patrick, 1996;Igbaria and Tan, 1997;Venkatesh and Davis, 2000;Lin and Lu, 2000;Moon and Kim, 2001;Wu, 2001;Chen et al, 2002;Shih, 2004;Yen, 2005;Vijayasarathy, 2004;Shang et al, 2005;Cheng, Lam and Yeung, 2006;Porter and Donthu, 2006;King and He, 2006;Schepers and Wetzels, 2007;Chang, 2007). However, usefulness does not have a significant influence on usage behavioral intentions, which differs from the TAM model.…”