Reuse in Use-Case Models: <<extend>>, <<include>>, and Inheritance
Extension Point - an overview | ScienceDirect Topics
Use Case Diagram, UML Diagrams Example: Using Extension Point - Visual Paradigm Community Circle
Use Case Extension Points
use case - In UML can we use Extension Points with Include Usecases? - Stack Overflow
Modeling a UML use case diagram - Support - Bizzdesign Support
Extension Point - Use Case Modeling - UML CASE Tool
cxusecase.png
UML use case extend relationship is used to show how and when some optional extending use case can be inserted into extended (base) use case.
uml - Specialization or extension point use case - Stack Overflow
Extend | Enterprise Architect User Guide
![Dependencies - Learning UML [Book]](https://www.oreilly.com/api/v2/epubs/0596003447/files/tagoreillycom20070222oreillyimages96061.png "Dependencies - Learning UML [Book]")
Dependencies - Learning UML [Book]
Use Case Diagram - UML 2 Tutorial | Sparx Systems
The use case diagram: structure and function - IONOS
Extend | Enterprise Architect User Guide
uml - Can a use case be both an extension and an inclusion? - Software Engineering Stack Exchange
Use case diagram for overriding settings? - Stack Overflow
