Guest is welcomed he/she selects hi

Guest is welcomed he/she selects his/her own food, collect them in a food tray, help themselves and the clearance can either be done by the staff or guest. Now days, it is the most common service that is followed in fast food joints and restaurants.
Following are the various ways in which the self-service can be carried out.
a) Counter: a "Q" is formed for a service counter, where the guest selects its own tray or food.
b) Free Flow: It is same as counter service but the only difference is that the guest moves in a random to the service point, and exits via a till point.
c) Single point Service: Guest enters, guided towards a single point. Service is to be carried out by the customer itself and clearance either by staff or guest. Food or Beverage is supplied from a single point.