uml - Use cases Extends and include - Stack Overflow

I have a not completed diagram of e-commerce order I am not sure of the include and extend relatationship Does this diagram is correct for the attached flow

uml - What's is the difference between include and extend in use

Simple Use Case Diagram - UML - Stack Overflow

uml - Can an extended use case have a relationship with another

Applied Sciences, Free Full-Text

Complex UML use case diagram - Stack Overflow

uml - Extend in use case diagram - Stack Overflow

Major elements of business use case UML diagram.

uml - Specialization or extension point use case - Stack Overflow

Uml uses case diagram suggestion - Stack Overflow

uml - Extend in use case diagram - Stack Overflow

UML Use Case Diagram - Stack Overflow

uml - Using base use case as include use case - Stack Overflow