As mentioned in the Learning Activity titled “Advantages of Use Case Modeling,” what are some of the benefits of using case modeling?

As mentioned in the Learning Activity titled “Advantages of Use Case Modeling,” what are some of the benefits of using case modeling? If you were a systems administrator, what are some of the ways you can use case modeling to understand the functional requirements of the system? What steps would you take to benchmark the performance of the system to determine the desired outcomes?