14+ Use Case Diagram Database. It is possible of an external system, but not likely to be a database (it should be an active kind of system or device that interactswith the use case) and this kind of actor called external actors. The use case should describe the goal from the user's perspective (e.g.
These requirements are mostly design requirements. The use case diagram is used to describe the goals that users or other systems want to achieve from interacting with the system. It helps keep the focus on the requirements of the end user throughout the development of the system.
While support for business modeling was declared as one of the goals of the uml, uml specification provides no notation specific to business needs.
14+ Use Case Diagram Database. In addition to introducing use cases as primary elements in software development, jacobson (1994) also introduced a diagram for visualizing use cases. The use case diagram is used to identify the primary elements and processes that form the system. The use case diagram is also now part of the uml. The use case should describe the goal from the user's perspective (e.g.