This is the UML sequence diagram of Telephone Billing Payment System which shows the interaction between the objects of , Tarrifs, Connections, Customers, Bill. The instance of class objects involved in this UML Sequence Diagram of Telephone Billing Payment System are as follows:

• Object
• Tarrifs Object
• Connections Object
• Customers Object
• Bill Object

This is the UML sequence diagram of Telephone Directory Management System which shows the interaction between the objects of Email Id, City Name, Address, Contact, Phone Number. The instance of class objects involved in this UML Sequence Diagram of Telephone Directory Management System are as follows:

• Email Id Object
• City Name Object
• Address Object
• Contact Object
• Phone Number Object

This is the UML sequence diagram of Ticket Reservation System which shows the interaction between the objects of Fare, Ticket, Passengers, Stations, Train. The instance of class objects involved in this UML Sequence Diagram of Ticket Reservation System are as follows:

• Fare Object
• Ticket Object
• Passengers Object
• Stations Object
• Train Object

This is the UML sequence diagram of Timetable Management System which shows the interaction between the objects of Exam, Student, Teacher, Timetable, Class. The instance of class objects involved in this UML Sequence Diagram of Timetable Management System are as follows:

• Exam Object
• Student Object
• Teacher Object
• Timetable Object
• Class Object

This is the UML sequence diagram of Tourism Management System which shows the interaction between the objects of Customer, Package, Hotel, Travel Agent, . The instance of class objects involved in this UML Sequence Diagram of Tourism Management System are as follows:

• Customer Object
• Package Object
• Hotel Object
• Travel Agent Object
• Object

This is the UML sequence diagram of Traffic Controller System which shows the interaction between the objects of Traffic, Traffic Light, Traffic Polices, , Routes. The instance of class objects involved in this UML Sequence Diagram of Traffic Controller System are as follows:

• Traffic Object
• Traffic Light Object
• Traffic Polices Object
• Object
• Routes Object

This is the UML sequence diagram of Traffic Monitoring System which shows the interaction between the objects of Divertions, Traffic, Length, Traffic Polices, Vehicle Types. The instance of class objects involved in this UML Sequence Diagram of Traffic Monitoring System are as follows:

• Divertions Object
• Traffic Object
• Length Object
• Traffic Polices Object
• Vehicle Types Object

This is the UML sequence diagram of Training and Placement Management System which shows the interaction between the objects of Company, Qualification, Trainning, Jobskeer, Job. The instance of class objects involved in this UML Sequence Diagram of Training and Placement Management System are as follows:

• Company Object
• Qualification Object
• Trainning Object
• Jobskeer Object
• Job Object

This is the UML sequence diagram of Training Management System which shows the interaction between the objects of Training, Job, Knowledge, College, Qualification. The instance of class objects involved in this UML Sequence Diagram of Training Management System are as follows:

• Training Object
• Job Object
• Knowledge Object
• College Object
• Qualification Object

This is the UML sequence diagram of Travel Agency Management System which shows the interaction between the objects of Cabs, Booking, Paymens, Travel Agency, Customer. The instance of class objects involved in this UML Sequence Diagram of Travel Agency Management System are as follows:

• Cabs Object
• Booking Object
• Paymens Object
• Travel Agency Object
• Customer Object