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A Use Case Diagram represents the functional requirements of a software system by showing the interactions between different users, called actors, and the services or functions provided by the system. In a delivery management system, the main actors are the Customer, Delivery Executive, and Administrator. Each actor performs different activities according to their role in the system. The following Use Case Diagram illustrates their interaction: ```text +--------------------------------------+ | DELIVERY MANAGEMENT SYSTEM | | | Customer | (Register / Login) | |----------------|--------------------------------------| | | (Place _____ _____ _____ ___ _____ ___ ____ ________ ___ ______ ___ __________.
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