![Use Case Diagram, UML Diagrams Example: Website (structuring use cases with extend and include use case) - Visual Paradigm Community Circle Use Case Diagram, UML Diagrams Example: Website (structuring use cases with extend and include use case) - Visual Paradigm Community Circle](https://circle.visual-paradigm.com/wp-content/uploads/2017/08/Use-Case-Diagram-Website-_-Structuring-use-cases-with-extend-and-include-use-case-3-1280x720.png)
Use Case Diagram, UML Diagrams Example: Website (structuring use cases with extend and include use case) - Visual Paradigm Community Circle
![uml - Use case diagram where actions are going through a third party system - Software Engineering Stack Exchange uml - Use case diagram where actions are going through a third party system - Software Engineering Stack Exchange](https://i.stack.imgur.com/ZGVs0.png)
uml - Use case diagram where actions are going through a third party system - Software Engineering Stack Exchange
![UML use case include relationship shows that behavior of the included use case is inserted into the behavior of the including use case. UML use case include relationship shows that behavior of the included use case is inserted into the behavior of the including use case.](https://www.uml-diagrams.org/use-case-diagrams/use-case-include-split.png)
UML use case include relationship shows that behavior of the included use case is inserted into the behavior of the including use case.
![Use Case Diagram, UML Diagrams Example: "Include" and "Extend" Use Cases - Visual Paradigm Community Circle Use Case Diagram, UML Diagrams Example: "Include" and "Extend" Use Cases - Visual Paradigm Community Circle](https://circle.visual-paradigm.com/wp-content/uploads/2017/08/Use-Case-Diagram-Include-and-Extend-Use-Cases-1-1280x720.png)