This UML use case diagram represents a system's dynamic behavior. It encapsulates the system's functionality by incorporating use cases, actors, and relationships. It stimulates the tasks, services, and functions required by an application's system/subsystem. It depicts a system's high-level functionality and how the user interacts with the system. A use case diagram's primary purpose is to show the dynamic aspect of a system. It collects the system's needs, including internal and external influences. It invokes people, use cases, and other things that hold actors and elements accountable for implementing use case diagrams. Grab a copy of EdrawMax today to add to your use case diagramming skills.