12+ Complex Use Case Diagram Example. In our example, the basic use case is capture deal. But from perspective of seller this use case is visible as simple payment operation.
UML Use Case Diagram Example – Registration System from www.conceptdraw.com
In addition to introducing use cases as primary elements in software development, jacobson (1994) also introduced a diagram for visualizing use in effect, this gives us another way of capturing alternative scenarios. A box that sets a system scope to use. For example, if before modifying a particular type of customer order, a user must get approval from some higher authority, then the <get approval> use case may optionally extend the regular <modify.
The purpose of use case diagram is to capture the dynamic aspect of a system.
12+ Complex Use Case Diagram Example. As you can see even a system as big as a vehicle sales system contains not more than 10 use cases! Use case diagrams specify how the system interacts with actors without worrying about the details of how that functionality is implemented. It helps keep the focus on the requirements of the end user throughout the development of the system. Use case diagrams help visualize the interaction between the user and the system, or in other words, the user actions and the system responses.
