Modeling with Technology FrameWork

Creating and relating use cases
Chapter 20: Use Case Models (UML)
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■ A scenario description that provides a textual account of
situations in which the type of interaction represented by the
use case occurs.
■ Business rules
■ Initiating business events
■ Preconditions
■ Postconditions
■ Snapshot scenarios
Creating and relating use cases
Creating a use case or
composite use case
Creating an extends
relationship
To create a use case or composite use case:
1 In the UML Use Case Diagram Tools tool folder, click and hold
on the Use Case tool or Composite Use Case tool.
2 Drag into your use case diagram window and release the mouse
button where you want to place the use case or composite use
case graphic.
3 Type a name for the use case or composite use case. Then click
on the window background to close the edit box.
To create an extends relationship:
1 In the UML Use Case Diagram Tools tool folder, click and hold
on the Extends tool.
2 Move your cursor to the extending use case and release the
mouse button. Then click on the extended use case.