“…For example, the technology acceptance model posits users' perceptions of ease of use and usefulness as being key factors driving IT usage (Davis, ). In addition, users' perceptions are also important in disciplines such as human‐computer interaction (Caroll, , Xu et al, , ; Xu, ; Argyris & Xu, ), design science (Brocke, Riedl, & Léger, ), requirement engineering (Shaw & Gaines, ), and usability engineering (Nielsen, ). Without understanding users' perceptions, we cannot know whether or not the design criteria considered as effective by designers will have their intended effect on users.…”