Cart
- Int CartID- Int DishID- Int Unit- Int TableID
+ operation1(params):returnType- operation2(params)- operation3()
Customer
- String UserID- String VIPcardNumber
+ orderDish+ payDish+ applyVIP+ modifyOrder+ giveComments
Menu
- String Version
Dish
- Int dishID- String Name- Double Price- Int Type-String Image
User
- String UserID- String UserType- String UserPassword
Chef
- String UserID- String UserPassword
+ changeDishStatus
Order
- Int OrderID- Int
Boss
+ viewAnalysis
Manager
- String UserID- String USerPassword
+ changeMenu+ allocateChef
Table
- String tableID- Int tableState
Waitress
+ getPayment+ printReceipt
