This is the UML sequence diagram of Issue Tracking System which shows the interaction between the objects of Tester, Project, Tracking, Bug, Developer. The instance of class objects involved in this UML Sequence Diagram of Issue Tracking System are as follows:

• Tester Object
• Project Object
• Tracking Object
• Bug Object
• Developer Object

This is the UML sequence diagram of Job Portal System which shows the interaction between the objects of Interview, Search Job, Registration, Call Letter, Job. The instance of class objects involved in this UML Sequence Diagram of Job Portal System are as follows:

• Interview Object
• Search Job Object
• Registration Object
• Call Letter Object
• Job Object

This is the UML sequence diagram of Jwellary Shop Management System which shows the interaction between the objects of Payment, Quality, Sales, Jwellery, Product. The instance of class objects involved in this UML Sequence Diagram of Jwellary Shop Management System are as follows:

• Payment Object
• Quality Object
• Sales Object
• Jwellery Object
• Product Object

This is the UML sequence diagram of Jwellary Shoping System which shows the interaction between the objects of Product, Payment, Jwellery, Stock, Sales. The instance of class objects involved in this UML Sequence Diagram of Jwellary Shoping System are as follows:

• Product Object
• Payment Object
• Jwellery Object
• Stock Object
• Sales Object

This is the UML sequence diagram of KBC Quiz System which shows the interaction between the objects of Questions, Points, Level, Answers, Patterns. The instance of class objects involved in this UML Sequence Diagram of KBC Quiz System are as follows:

• Questions Object
• Points Object
• Level Object
• Answers Object
• Patterns Object

This is the UML sequence diagram of Leave Approval System which shows the interaction between the objects of Cancel Leave, Branch, Company, Leave, Report. The instance of class objects involved in this UML Sequence Diagram of Leave Approval System are as follows:

• Cancel Leave Object
• Branch Object
• Company Object
• Leave Object
• Report Object

This is the UML sequence diagram of Library Application System which shows the interaction between the objects of Expiry, Student, Book, Address, Supplier. The instance of class objects involved in this UML Sequence Diagram of Library Application System are as follows:

• Expiry Object
• Student Object
• Book Object
• Address Object
• Supplier Object

This is the UML sequence diagram of Leave Management System which shows the interaction between the objects of Leave, Notification, Approve Leave, Company, Branch. The instance of class objects involved in this UML Sequence Diagram of Leave Management System are as follows:

• Leave Object
• Notification Object
• Approve Leave Object
• Company Object
• Branch Object

This is the UML sequence diagram of Laboratory Inventory System which shows the interaction between the objects of Maintenance, Annotate Items, Inventory Valuation, Check in/out Items, Record Information. The instance of class objects involved in this UML Sequence Diagram of Laboratory Inventory System are as follows:

• Maintenance Object
• Annotate Items Object
• Inventory Valuation Object
• Check in/out Items Object
• Record Information Object