This use case diagram of an event management system has three actors and the relationships between them and the system. Event organizers can create an event, edit an event, and delete the event. It also allows them to generate reports, send notifications, and view details of an event in this event management system. An event management system allows the administrators to edit events, delete events, generate reports, and send notifications. Attendees can view event details and process payments. Process payments use case includes registering for an event and cancellation of registration. This use case diagram of the event management system shows the relationships between the actors and their use cases clearly.