FilmDB
-host: String-port: String
+add()+remove()+update()+find()
File
-name: String-briefContent: String-price: double
OfflineBooker
-age: Int-phone: String
+buy()
DataBase
# userInfo
TicketSeller
-name: String-workID: String
+sell()+registetUser()
Booker
# ID: String#name: String
System administrator
-onlineBooker[]: OnlineBooker-database[]: DataBase
+registerUser()+handleMissedPwd()+modiPwd()+handleDB()
OnlineBooker
-nickName: String-pwd: String-email: String-phone: String-registerDate: Date-address: String
+register()+login()+buy()+refund()+comment()+logout()
Business administrator
-film: Film [ ]-plan: FilmPlan
+presentContent()+presentPlan()+presentSellInfo()+answerQues()
FilmPlan
-film[]: Film-schdule[]: Date
Order
-customer: Booker-ticketSeller: TicketSeller-date: Date-price: double
UserInfoDB
