The results of the evaluation indicated that Rule B and Rule C had to be discarded, the reasons for which are:
(1) Rule B: Many situations arise at the scene of the restaurant and are difficult to predict, hindering order
service at the tables; disputes occur easily. Hence, having restaurant employees allocate services depending on
the situation was a better option. (2) Rule C: Customers hope to enjoy more and better services; although a selfhelp
computer system is more advanced, it lacks the human touch. Furthermore, service personnel were worried
that the system would affect their right to work, creating strong aversion.