July 2001
Intermediate to advanced
656 pages
15h 51m
English
book
Applying UML and Patterns: An Introduction to Object-Oriented Analysis and Design and the Unified Process, Second Edition
by Craig Larman
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6.11. Write Use Cases in an Essential UI-Free Style
New and Improved! The Case for Fingerprinting
Investigating and asking about goals rather than tasks and procedures encourages a focus on the essence of the requirements—the intent behind them. For example, during a requirements workshop, the cashier may say one of his goals is to “log in.” The cashier was probably thinking of a GUI, dialog box, user ID, and password. This is a mechanism to achieve a goal, rather than the goal itself. By investigating up the goal hierarchy (“What is the goal of that goal?”), the system analyst arrives at a mechanism-independent goal: “identify myself and get authenticated,” or an even higher goal: “prevent theft ...”.
This discovery process can open up the vision ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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