2.2. Key Components

Try these first

1. 1.

   What is the purpose of a Use Case Diagram?

   Hint

   Think about how it helps in understanding system functionality.

2. 2.

   Define what an Actor is in the context of UML.

   Hint

   Consider who or what uses the system.

3. 3.

   What do Use Case Diagrams primarily illustrate?

   • Database interactions
   • Functional scope and interactions
   • User interface design

   Hint

   Think about what aspect of the system these diagrams are emphasizing.

4. 4.

   True or False: Activity Diagrams can show both sequential and parallel processes.

   • True
   • False

   Hint

   Consider how processes might happen at the same time.

5. 5.

   Design a comprehensive Use Case Diagram for an online banking system that incorporates at least five actors and ten use cases.

   Hint

   Think about all interactions and decide which actors need to be included.

6. 6.

   Create an Activity Diagram for the payment process in an e-commerce system, and analyze potential delays.

   Hint

   Look for steps that may require multiple validations or approvals.