14+ Use Case Diagram External System. Use cases define interactions between external actors and the system to attain particular goals. Some people show every external system or human actor on the use case diagram;
An actor is a person, organization, or external system that plays a role in one or more interactions with your system. Use case diagrams are used at the development of software and systems for definition of functional system requirements or system of systems. Both beginners and intermediate uml diagrammers will find all the necessary training you represent a system with a rectangle.
Learn how to make use case diagrams in this tutorial.
14+ Use Case Diagram External System. Use case diagrams are used to gather the requirements of a system including internal and external influences. See how a use case diagram is created. Then how would i present that in a use case diagram ? Togaf roles and actors are used in place of uml actors.