Question

In a use case diagram, what does a dashed line with an arrowhead from a use case to another use case represent?
Association
Generalization
Include
Extend

Answer 1

4 Extend
In a use case diagram, a dashed line with an arrowhead from a use case to another use case represents the Extend relationship. This relationship indicates that one use case (the extended use case) can extend another use case (the base use case) under certain conditions or scenarios.