![]() It only summarizes some of the relationships between use cases, actors, and systems.It does not show the detail of the use cases: It is an effective technique for communicating system behavior in the user's terms by specifying all externally visible system behavior.Ī use case diagram is usually simple. A key concept of use case modeling is that it helps us design a system from the end user's perspective. Use cases once specified can be denoted both textual and visual representation (i.e. ![]() Use cases specify the expected behavior (what), and not the exact method of making it happen (how). So what is a use case diagram? A UML use case diagram is the primary form of system/software requirements for a new software program underdeveloped. Is use case diagram underrated? I hope you will find the answer when finished reading this article. Some people don't know what use case is, while the rest under-estimated the usefulness of use cases in developing a good software product. ![]() Here are some questions that have been asked frequently in the UML world are: What is a use case diagram? Why Use case diagram? or simply, Why use cases?.
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