The growth of these chains is considered as a success particularly when competing against other giant chains such as McDonalds, Burger King, KFC, and Wimpys. Although fast food chains provide quick and efficient service, their operation models are different. In the traditional model, like Mc Donalds, customers enter the restaurant, study the menu panels for a short period, and stand in the shortest line (behind the many counters). When the customer reaches the front of the line, he or she places an order, pays at the register, and collects the food within few minutes. When, a customer requests a nonstandard item, for example a burger with no tomatoes or extra bacon and cheese, the order is not available in the prestocked food area. The counterperson calls the order in to the production area.
The item is then prepared to order as a priority. The waiting time is a bit longer in this case. Not all fast food chains in the UK follow the same customer service operational model. They have tried some innovative ideas to serve customers quicker and have more options and flexibility. In Subway, sandwich is prepared right in front of the customer, where the customer can select what type of bread, size, and sandwich fillings. The sandwich is normally ready in a couple of minutes and passed to the customer as soon as the customer pays for the food. Dominoz Pizza offers home delivery for a wide range of its pizzas, which can be personalized as well, in less than 20 minutes, while it does not charge for the delivery.
Pizza Hut offers an open buffet as part of its service, to reduce the workload on its staff and give its customers more options with less price. In Pret A Manger and EAT, a set of sandwiches, salads, and desserts are assembled each day and stocked in the front of the shop where the customers select and pay for their meals. The stock level is then replenished during the day in line with demand. The aim is to continually meet the high quality and freshness standards. If any of the product assembled that day have not sold by the time the store closes, they are given to local charities rather than being stored and sold the following day.