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

This Use Case Diagram is a graphic depiction of the interactions among the elements of Decision Support System. It represents the methodology used in system analysis to identify, clarify, and organize system requirements of Decision Support System. The main actors of Decision Support System in this Use Case Diagram are: Super Admin, System User, User, Anonymous Users, who perform the different type of use cases such as Manage Decision, Manage Information, Manage Reseach, Manage Projects, Manage Invetigations, Manage Researcher, Manage Users and Full Decision Support System Operations.

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

This Use Case Diagram is a graphic depiction of the interactions among the elements of Dental Clinic. It represents the methodology used in system analysis to identify, clarify, and organize system requirements of Dental Clinic. The main actors of Dental Clinic in this Use Case Diagram are: Super Admin, System User, Doctor, Patient, who perform the different type of use cases such as Manage Dental Problems, Manage Patient, Manage Doctors, Manage Nurses, Manage Appointments, Manage Medicines, Manage Users and Full Dental Clinic Operations.

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

This Use Case Diagram is a graphic depiction of the interactions among the elements of Doctor Appointment System. It represents the methodology used in system analysis to identify, clarify, and organize system requirements of Doctor Appointment System. The main actors of Doctor Appointment System in this Use Case Diagram are: Super Admin, System User, Doctor, Patient, who perform the different type of use cases such as Manage Doctors, Manage Appointment, Manage Booking, Manage Fees, Manage schedule, Manage Clinics, Manage Users and Full Doctor Appointment System Operations.

This Use Case Diagram is a graphic depiction of the interactions among the elements of Doctors Information System. It represents the methodology used in system analysis to identify, clarify, and organize system requirements of Doctors Information System. The main actors of Doctors Information System in this Use Case Diagram are: Super Admin, System User, Doctor, User, who perform the different type of use cases such as Manage Doctors, Manage Degree, Manage Fees, Manage schedule, Manage Clinics, Manage Test, Manage Users and Full Doctors Information System Operations.

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

This Use Case Diagram is a graphic depiction of the interactions among the elements of E-Governace System. It represents the methodology used in system analysis to identify, clarify, and organize system requirements of E-Governace System. The main actors of E-Governace System in this Use Case Diagram are: Super Admin, System User, User, Anonymous Users, who perform the different type of use cases such as Manage Bill, Manage Petition, Manage Payment, Manage Customer, Manage Exchange of Information, Manage Government Services, Manage Users and Full E-Governace System Operations.

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