每个服务只提供整个业务事务的一小部分，结果是一个操作进入另一个的处理中（例如订单执行和记账）。

Each service may only provide a small part of the overall business transaction, with results of one operation feeding into the processing of another (such as order fulfillment and billing).

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最后，第3部分将查看订单处理流程中使用的各种集成技术。

Finally, Part 3 will examine the various integration techniques that are used by the Order Handling process.

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图11，摘自“第1部分：服务实现”，显示了处理购买订单的服务架构。

Figure 11, which is from Part 1. Service identification, shows the service architecture for processing purchase orders.

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