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Download Applying Use Case Driven Object Modeling with UML: An by Doug Rosenberg PDF

By Doug Rosenberg

Positioned among the very huge Rational Unified method and the very small severe programing procedure, the ICONIX method uses the Unified Modeling Language. The authors evaluate this procedure which attracts on most of these methodologies, and convey truth to conception through a working net book shop instance and workouts. Appendices comprise a part of a version file (available in complete from an auxiliary internet site), and use case documentation. A assisting workbook and CD-ROM also are on hand. either authors are with ICONIX software program Engineering, Inc.

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Extra resources for Applying Use Case Driven Object Modeling with UML: An Annotated e-Commerce Example

Example text

Figure 4-1 shows where we are. Figure 4-1. Requirements Review and the ICONIX Process The Key Elements of Requirements Review Requirements review must involve representatives of both the customer(s) and the development team, as well as any necessary managers. The goal is to achieve basic agreement among all parties that the use cases, together with the domain model and whatever prototype elements are in place, capture the functional requirements of the system. This works best when everyone is in a room together, with a facilitator/moderator who keeps the conversations on track and a scribe who records the results and the action items.

On the previous page: ?? The first use case fragment doesn’t name the boundary object. The second use case fragment reads more like part of a requirements spec than a use case. The third use case fragment refers to two methods. Exercise 4 [from Check Out] The Customer selects a billing method and presses the Use This Billing Information button. Then the Customer presses the Confirm Order button. The use case ends. [from Ship Order] The Clerk waves the bar code on the packing slip under the sensor at the shipping station.

A use case is most effectively stated from the perspective of the user as a set of present-tense verb phrases in active voice. The tendency of engineers to use passive voice is well-established, but use cases should state the actions that the user performs, and the system’s responses to those actions, and this kind of text is only effective when it’s stated in active voice. Describe only user interactions; ignore system responses. ” The use case should capture a good deal of what happens “under the covers” in response to what the actor is doing, such as creating new objects, validating user input, or generating error messages.

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