The system has the possibility of transmission error. Should be tested several times before being used in the real place. And should be designed to provide easy to understand, quick to order food.
The system offers the possibility to send the error data to multiple tests should be made prior to the cycle used in the actual place, and should be designed to be easy to understand, fast food order.
There is a system of false information should be sent to the test several times before you use it in real places, and should be designed to provide easy to understand, in order to fast food