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Analysis. JISCMail. UML Case Diagrams. Use case diagrams are usually referred to as behavior diagrams used to describe a set of actions (use cases) that some system or systems (subject) should or can perform in collaboration with one or more external users of the system (actors).

UML Case Diagrams

Each use case should provide some observable and valuable result to the actors or other stakeholders of the system. Note, that UML 2.0 to 2.4 specifications also described use case diagram as a specialization of a class diagram, and class diagram is a structure diagram. Use case diagrams are in fact twofold - they are both behavior diagrams, because they describe behavior of the system, and they are also structure diagrams - as a special case of class diagrams where classifiers are restricted to be either actors or use cases related to each other with associations.

[UML 2.5 FTF - Beta 1] moved use cases out of behavior modeling to UML supplementary concepts. So, it is an unfortunate quandary what kind of UML diagrams use case diagrams are.

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Science Related Journals. Funding. Jobs. CAST: Center for Applied Special Technology. Handbook of social media for researchers and supervisors - www.vitae.ac.uk/policy-practice. Skills (Learning the Craft of Doing Research)

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  1. raviii Apr 25 2014
    the key concept is to demonstrate that your learning is to professional standards