Why Work with Use Cases
Starting with a Use Case
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Why Work with Use Cases?
Use cases describe system behavior in a common language that everyone on the team
can understand. Working with use cases is a key unifying mechanism in the Rational
Unified Process (RUP).
Use cases are important to everyone on the project:
s
Analysts use them to express how the system should behave and to verify planned
changes with stakeholders.
s
Developers and designers can start with human-language and graphical use cases.
They elaborate them first into architectural specifications and then into classes.
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Testers develop test designs based on use cases.
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System testers use them to validate system behavior starting as early as the design
phase.
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Project leaders and managers use them to formally verify that the results of
requirements conform to the customer's view of the system.
Exercise: Open the use case document.
1
In the
Explorer
window, go to ClassicsCD Web Shop > Use Cases > Arrange Shipment >
Arrange Shipment
, then double-click this Word document entry (see Figure 18).
Figure 18
Opening a Use Case Document with RequisitePro
