Uml Use Case Diagram Multiple Systems. If your use case diagrams resemble a spider s web your design is broken. Use cases are represented with a labeled oval shape.
Use case diagrams are used to analyze the system s high level requirements. Use case diagrams specify the events of a system and their flows. Stick figures represent actors in the process and the actor s participation in the system is modeled with a line between the actor and use case.
After all the functionalities of a system are found out then these functionalities are converted into various use cases which will be used in the use case diagram.
To depict the system boundary draw a box around the use case itself. This use case diagram tutorial will cover the following topics and help you create use cases better. Importance of use case diagrams. To draw a use case diagram in uml first one need to analyse the entire system carefully.
