您已看到，为将xml与sdo配合使用，确实需要一个XML模式文件，XML DAS将通过此文件初始化类型与属性模型，或许您还会发现这有些令人不快。

You will have seen that to use XML with SDO, you do need a XML schema file from which the XML DAS can initialize the model of types and properties, and perhaps you found that off-putting.

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XML DAS 初始化其模型的方法是：读取和解析与准备载入的 XML 文档对应的 XML 模式定义文件（XSD 文件）。

The XML DAS always initializes its model by reading and parsing an XML schema definition file (an XSD file) that corresponds to the XML instance document it is going to load.

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为工作区激活一个百科全书，那么根百科全书自然就会使用结构模型初始化。

You enable an encyclopedia for Workspaces, and the root Workspace is naturally populated with architecture models.

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