这种类型定义引用了数据库域之中的单元，所以您必须为数据库域，从代码清单4向xsd添加名字域声明以及导入声明。

This type definition refers to a unit in the database domain, so you must add the namespace declaration and the import declaration for the database domain from Listing 4 to your XSD.

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使用活动4，你可以建立一个术语表，它定义了数据源中名字的含义。

Used with activity 4, you can start creating a glossary that defines the meaning of names in the data source.

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每一个元素具有一个名字和类型属性来定义消息part的名字及相应的数据类型。

Each element has both a name and type attribute that specify the message part name and its corresponding data type.

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