Maybe a nice to have is deviding the menus.
After ordering goes the food to the kitchen and my ordered beer to the bar of the restaurant.
I am working on a project that the waiter can order on the terras.
The waiter must login so I can see what he is ordering and selling.
Then he have to choose a table id and cliend id to process for further ordering.
For a new waiter who don't know all seats is a seat map desirable. See my earlier featured request.
After ordering the menu is send to the kitchen, bar or other section of the restaurant.
For big organisations, for example a wellness, the customer gets an id upon entry and is known for the whole day on that id.
All orders for food, drinks etc will be ordered on that id.
After the day the custmoer gets his bill over his ordered stuff.