另一方面，对象领域模型还有自己的局限，特别在SOA环境中更是如此；在SOA环境中，跨越多个层次和系统的灵活性和解决方案是最为重要的。

On the other hand, the object domain model also has its limit, particularly in SOA environments, where flexibility and solutions spanning multiple layers and systems are of Paramount importance.

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尽管业务处理层次为出现在业务处理中的真实抽象建立了模型，这个层次将抽象建模为其在系统中所要被表示的那样。

Whereas the business process level modeled the real-world abstractions that appear in the business processes, this level models the abstractions as they are to be represented inside the system.

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组件模型为子系统、模块和组件的层次结构分配需求和职责。

The component model allocates requirements and responsibilities to a hierarchy of subsystems, modules, and components.

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