此外，用例非常适合于用户验收测试，因为需要验收测试用例来模拟最初从系统涉众中抽取的情景。

Moreover, use cases are uniquely suited for the User Acceptance Test because acceptance test cases are required to resemble the scenarios originally elicited from system stakeholders.

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我们将使用大家熟悉的旅程预订情景来说明这些新技术是如何简化动态电子商务系统的开发的。

We'll use the familiar travel reservation scenario to illustrate how these new technologies ease the development of dynamic e-business systems.

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一些人设想了保持现代世界运行的系统突然崩溃的情景。

Some scenarios imagine the almost instantaneous failure of the systems that keep the modern world turning.

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