The previous section showed how to reference another sequence diagram by passing information through parameters and return values.

前面的段落展示如何通过参数和返回值传递信息，引用另一个序列图。

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Based on the scenario introduced in the Integrating local XML store data section, consider the entity relationship diagram shown in Figure 4 that describes an online bookstore scenario.

结合在集成本地XML存储数据一节介绍的场景，来看看图4所示的实体关系图，该图描述了一个在线书店的场景。

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Any service that you create becomes a component that you can drop into an assembly diagram (see the next section).

所创建的任何服务都是可置入组装关系图中的一个组件(请参阅接下来的部分)。

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