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 - Two actors have same use case but can access different

UML Stereotypes: Diagramming Style Guidelines

Characterizing architecture related posts and their usefulness in

user interface - use case diagrams include and extend - Stack Overflow

Use Case Diagram Relationships Explained with Examples - Creately Blog

Replit — How to train your own Large Language Models

Major elements of business use case UML diagram.

UML - Understanding <> in use case diagram - Stack Overflow

use case - uml-include or extend - Stack Overflow

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dependencies - Use Case Diagram - Is this Correct? - Stack Overflow