This Use Case Diagram is a graphic depiction of the interactions among the elements of Library Management System. It represents the methodology used in system analysis to identify, clarify, and organize system requirements of Library Management System. The main actors of Library Management System in this Use Case Diagram are: Super Admin, System User, Librarian, Student, who perform the different type of use cases such as Manage Student, Manage Books, Manage Issues, Manage Librarian, Manage Member, Manage Address, Manage Users and Full Library Management System Operations.

This Use Case Diagram is a graphic depiction of the interactions among the elements of Mailing System. It represents the methodology used in system analysis to identify, clarify, and organize system requirements of Mailing System. The main actors of Mailing System in this Use Case Diagram are: Super Admin, System User, Users, Anonymous Users, who perform the different type of use cases such as Manage Mailbox name, Manage Domain name, Manage Userdata, Manage Subject, Manage Messagedata, Manage MailserverAdress, Manage Users and Full Mailing System Operations.

This Use Case Diagram is a graphic depiction of the interactions among the elements of Marrige Buero Management. It represents the methodology used in system analysis to identify, clarify, and organize system requirements of Marrige Buero Management.

This Use Case Diagram is a graphic depiction of the interactions among the elements of Media Management System. It represents the methodology used in system analysis to identify, clarify, and organize system requirements of Media Management System. The main actors of Media Management System in this Use Case Diagram are: Super Admin, System User, Authors, Users, who perform the different type of use cases such as Manage Media, Manage Images, Manage Videos, Manage Category, Manage Login, Manage Uploads, Manage Users and Full Media Management System Operations.

This Use Case Diagram is a graphic depiction of the interactions among the elements of Medical Diagnostic System. It represents the methodology used in system analysis to identify, clarify, and organize system requirements of Medical Diagnostic System.

This Use Case Diagram is a graphic depiction of the interactions among the elements of Medical Store Management System. It represents the methodology used in system analysis to identify, clarify, and organize system requirements of Medical Store Management System.

This Use Case Diagram is a graphic depiction of the interactions among the elements of Membership Management System. It represents the methodology used in system analysis to identify, clarify, and organize system requirements of Membership Management System.

This Use Case Diagram is a graphic depiction of the interactions among the elements of Metro Rail Ticket Booking System. It represents the methodology used in system analysis to identify, clarify, and organize system requirements of Metro Rail Ticket Booking System.

This Use Case Diagram is a graphic depiction of the interactions among the elements of Mobile Phone Billing System. It represents the methodology used in system analysis to identify, clarify, and organize system requirements of Mobile Phone Billing System.

This Use Case Diagram is a graphic depiction of the interactions among the elements of Mobile Service Enqiry System. It represents the methodology used in system analysis to identify, clarify, and organize system requirements of Mobile Service Enqiry System.