The base use case depends upon an include use case and an extend use case depends upon a base use case.

Name: The base use case depends upon an include use case and an extend use case depends upon a base use case.
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In use case modeling, an "include" relationship means the base use case incorporates the behavior of another use case, while an "extend" relationship means the extended use case adds behavior to the base use case under certain conditions.

The Base Use Case Depends Upon an Include Use Case