Create Use Case Diagram for Scenario 3

[berat-sayin]

A use case diagram will be created for Scenario 3.

[AlperKartkaya]

We have uploaded a use case diagram for Scenerio 3, can you review? @gulcetahtasiz @delibas-rojhat

[delibas-rojhat]

Reviewed the use case diagram. The main actors and system interactions are clearly represented and aligned with Scenario 3 requirements. Looks good to me.