![]() ![]() ![]() ![]() What was found was that the use case diagrams conveyed the intent of the system in a more simplified manner to stakeholders and that they were "interpreted more completely than class diagrams". Siau and Lee conducted research to determine if there was a valid situation for use case diagrams at all or if they were unnecessary. In simpler words it depicts how a possible user would interact with the system. ![]() The drawings attempt to mimic the real world and provide a view for the stakeholder to understand how the system is going to be designed. A use case diagram is a type of UML diagram that is used to describe the possible usage scenario that a system is developed for. On a macro scale, the information you can glean from use case diagrams allow you to set the scope of your system or application, and what goals it can help the actors achieve. ĭue to their simplistic nature, use case diagrams can be a good communication tool for stakeholders. In essence, use case diagrams depict what the system is, who is using it, and how they are using it, or what they are doing. It has been said before that "Use case diagrams are the blueprints for your system". While a use case itself might drill into a lot of detail about every possibility, a use-case diagram can help provide a higher-level view of the system. The actors are often shown as stick figures. The use cases are represented by either circles or ellipses. A use case diagram shows various use cases and different types of users the system has and will often be accompanied by other types of diagrams as well. A use case diagram is a graphical depiction of a user's possible interactions with a system. ![]()
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