DFD (Data Flow Diagram) for Online Event Management System Level 0: High-level overview of the system. Entities: Users, Event Database Processes: Manage Events, Register Users, View Events Level 1: Breakdown of Level 0 processes. Manage Events: Create Event, Update Event, Delete Event Register Users: User Registration, User Authentication View Events: Search Events, View Event Details Level 2: Detailed processes for "Create Event". Input Data: Event Details Processes: Validate Event Data, Save Event to Database Output Data: Confirmation Message | Anything