13+ System Level Use Case Diagram. You can extend or include use cases depending on the complexity of the system. Use case diagram (uc) :
In the other two formats, text with diagrams of different levels of detail is used. It describes the relationships between requirements, users, and the major components. A use case diagram acts as a focus for the description of user requirements.
Hence, when a system is analyzed to gather its functionalities, use cases are prepared and actors are identified.
13+ System Level Use Case Diagram. Normally, domain experts and business analysts should be involved in a use case diagram is quite simple in nature and depicts two types of elements: It describes the relationships between requirements, users, and the major components. This use case diagram is not showing the difference between a simple visitor and a registered one. • specify the context of a system • capture the requirements of a system • validate a systems architecture • drive implementation and generate test.