15 Use Case Diagram Symbols. Use cases define the interactions between people and technology. The diagram is used to model the system/subsystem of an application.
CSE375: 17 Gang of Four Patterns from csci.csusb.edu
It may not be obvious from use case diagram. Register any users can create an account by registering. Defining and organizing functional requirements in a system.
Using a uml use case diagram, you can't.
15 Use Case Diagram Symbols. Uml use case diagram is a type of behavior diagrams that displays the dependencies between the actors and use cases. The use case diagram is used to identify the primary elements and processes that form the system. The last two symbols are the actor initiator arrow and the actor connector line. Use case diagrams model the functionality of a system using actors and use cases.