The uml notation for the “includes” relationship is a(n) _______.

The UML (Unified Modeling Language) notation for the "includes" relationship is represented by a dashed arrow that has an open arrowhead pointing from the including use case to the included use case. This relationship is often used to depict that a use case incorporates the behavior of another use case. The including use case is enhanced or extended by the behavior of the included use case.

Here is an example of how the "includes" relationship is represented in UML:

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+-----------------------+ | Including Use Case | |_______________________| | | | <<includes>> | | +-------------------+ | | | Included Use Case | | | |___________________| | | | +-----------------------+ 

In this example, the "Including Use Case" includes the behavior of the "Included Use Case." The <<includes>> stereotype is used to indicate the "includes" relationship.