图1说明了这种三层应用程序模型。

Figure 1 illustrates the three-tiered application model.

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它还介绍了三层应用程序设计，以及如何测试这些设计。

It also introduces 3 tier application design and how to test these designs.

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三层应用程序开发已经成为流行的开发方法，美国微软公司最新的。

Three-Tier application and development is more and more popular, and Microsoft.

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例如，请考虑一个由三层组成的典型的web应用程序。

For example, consider a typical web application that consists of three tiers.

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在三层架构中，队列管理器只了解应用程序的身份。

In the three-tier architecture, the queue manager knew only the identity of the application.

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在三层架构中，队列管理器只了解应用程序的身份。

In the three-tier architecture, the queue manager knew only the identity of the application.

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