Use Cases (OOM)

A use case is an interaction between a user and a system (or part of a system). It defines a discrete goal that a user wants to achieve with the system, without revealing the system's internal structure.

A use case can be created in the following diagrams:

Example

In this example, "buy tickets" and "buy subscriptions" are use cases.

• Creating a Use Case
  You can create a use case from the Toolbox, Browser, or Model menu.
• Use Case Properties
  To view or edit a use case's properties, double-click its diagram symbol or Browser or list entry. The property sheet tabs and fields listed here are those available by default, before any customization of the interface by you or an administrator.