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Use Cases: Requirements in Context, Second Edition by Eamonn Guiney, Daryl Kulak

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1. The Trouble with Requirements

When faced with what they believe is a problem, most engineers rush into offering solutions.

—ALAN M. DAVIS

1.1 First and Least of All . . .

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Technical people often pay much more attention to an entity relationship diagram or class diagram than to a requirements list.

Each time a team of systems people sets out to provide a computer system for a group of business people, they proceed through a set of activities that is fairly consistent:

• Requirements gathering

• Analysis

• Design

• Construction

• Testing

• Deployment

• Maintenance

The emphasis that the team gives each phase determines the direction and quality ...

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