Handlers: the Traceability Server has powerful and flexible data handling capability that allows a user to define data handlers for mapping specific data in EPCIS events to their own master data.

处理程序：Traceability Server提供强大且灵活的数据处理功能，用户可以通过定义数据处理程序把EPCIS事件中的特定数据映射到自己的主数据。

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A trusted user mapping can only be created by a user who holds the SECADM authority to prevent users from mapping themselves to more privileged users on the remote data sources.

只有具有SECADM权限的用户才能创建可信用户映射，以防止用户将自己映射到远程数据源上具有更多权限的用户。

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This mapping is what is called a model, a representation of the data source structure modelled for user consumption.

这种映射被称为模型，即为了便于用户使用而建模的数据源结构表示。

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