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

Name: The base use case depends upon an extend use case and an include use case depends upon a base use case.
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In UML, an extend use case is optionally included based on certain conditions and does not depend on the base use case, while an include use case is a required part of the base use case, indicating the base use case depends on the include use case for its functionality.

The Base Use Case Depends Upon an Extend Use Case