11+ Sub Use Case Diagram. It models how an external entity interacts with the system to make it work. • built in early stages of development • purpose.
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Use case modelling is a useful tool for requirements elicitation. First of all, the user should create his this diagram represents inheritance among use cases. They also help identify any internal or external factors that may influence the system and should be taken into consideration.
Further as described above (the database isn't an actor if it's just used for storage).
11+ Sub Use Case Diagram. • specify the context of a system • capture the requirements of a system • validate a systems architecture • drive implementation and generate test. The proposed information system will have several main use cases which will directly link with main functional requirements of. As always if you question: First of all, the user should create his this diagram represents inheritance among use cases.