不同类型的业务信息相互关联，因此，一个文档中的信息可以与另一个文档中的信息相关。

Different types of business information are related to each other, so information in one document can be related to information in another document.

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一组定义好的消息，每条消息包括一组相关的之前定义的类型、元素和属性，它们的结构可提供一个具有特定语义和上下文的业务文档。

A defined set of messages, each including a related set of the previously defined types, elements and attributes structured to provide a business document with a specific semantic meaning and context.

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这种产品类型层次结构使用元数据结构进行定义，并具有一组相关数据库表和业务服务。

This product type hierarchy is defined in a metadata structure and has an associated set of database tables and business services.

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