The dotted arrows toward the Main Use Case = Extend relationships. The rectangular box = the System Boundary An actor to the right would indicate someone in the back end interacting with the system. An actor to the left of the diagram typically represents the a person that will input a system. I will break down what each component means for you.Īctor = Stakeholder. Use-case engage the user in the requirement process.īefore we get into the steps of building use cases I wanted to break down the components of a Use Case diagram as well as that of a use case Use case Diagram Components:.Use-cases force developers to think from the end user perspective. ![]()
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