Waiting has an end

The waiters stressed out, the guests are waiting impatiently... a daily image in restaurants everywhere. Unnecessary waiting can be avoided with Dinnn system:
a) The guests are waiting until the waiter has brought the menu.
b) The guests are waiting until the waiter has come to get the orders for dishes and drinks.
c) The waiter is waiting until the guests at table have made their choices.
d) The cook is waiting until the waiter has entered the order into the checkout and has brought the order sheet.
e) The guests are waiting for the bill in order to be able to prepare cash.

Dinnn completely changes the gastronomical landscape. Those waiting times do not exist any more with the new Dinnn system.