2.2.6 the customer must check the total amount and the order for Terminal card to scan a bar code to display a list of the food that was ordered and the total amount ordered.
2.2.6 If the customer wants to check your balance and add food items to the Terminal for customers to scan a barcode cards for food items ordered and the total amount of the order.
A case 2.2.6 customers want to check the total amount, and their order point will be Terminal for customers the บัตรบาร์โค้ด to scan to show their order, and the total amount order.