Use Case Diagram for the Amazon Locker Service

Let's build the use case diagram of the Amazon Locker system and understand the relationship between its different components.

First, we’ll define the different elements of our system, followed by the complete use case diagram of the system.

System

Our system is “Amazon Locker."

Actors

Now, we’ll define the main actors of our Amazon Locker system.

Primary actors

• Customer: This is Amazon's customer who ordered a package delivered to the Amazon Locker. It can enter the code at the locker and get its product. This actor can also request a return and put the package back at the locker.

• Delivery guy: This can also enter the code and add the product to the locker so the "Customer" can pick it up. This actor can pick up a returned package from the locker.

Secondary actors

• System: ...