Thus in the process of constructing digital library, it is necessary to give them user-defined metadata standard.
因而在数字图书馆建设过程中，有必要对其自定义元数据标准。
The keyword search can be executed on different parameters such as document type, categories, user, and custom metadata defined through the property sheet.
关键词搜索可在不同的参数(比如文档类型、类别、用户和通过属性表定义的定制元数据)上执行。
Data model extensibility for new data types, and support for system and user defined metadata.
针对新数据类型的数据模型扩展性，支持系统和用户所定义的元数据。
We will start by creating a user defined metadata source that contains two fields called customer and order.
我们将从生成用户定义元数据源开始，它包含两个字段：customer和 order。
The next step is to create a form definition based on this user defined metadata source, to configure the fields as selection, and to link them to the two Web services that provide the data.
下一步是生成基于用户定义的元数据源的表单定义，配置作为选项的字段，并将其链接到提供数据的两个Web服务。
The extended metadata is defined by asset Manager to improve the user experience and facilitate asset reuse. This metadata contains.
已扩展元数据是被AssetManager定义的，用来提高使用体验和方便用户重用。
The extended metadata is defined by asset Manager to improve the user experience and facilitate asset reuse. This metadata contains.
已扩展元数据是被AssetManager定义的，用来提高使用体验和方便用户重用。
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