10+ The Use Case Diagram. On a use case diagram, use cases are associated (3) with the actors that perform them. A use case diagram doesn't go into a lot of detail—for example, don't expect it to model the order in which steps are performed.
Or it might be a complete application; Use case diagrams are valuable for visualizing the functional requirements of a system that will translate into design choices and. Payment can be through paypal or credit card.
A use case diagram is a dynamic or behavior diagram in uml.
10+ The Use Case Diagram. (system), who is using the system? Uml use case diagram is one of the type of uml diagram which is used to represent the dynamic diagram by mapping the structure of the systems using actors and use what is uml use case diagram? Your system (4) is whatever you are developing. A use case describes how a user uses a system to accomplish a particular goal.