To change or mapping的意思|示意

Note that if the EAR is deployed on multiple machines where users are not necessarily the same, you can still change the role to a user or group mapping at deployment time.

注意，如果该EAR被部署到多个机器上，其中用户并不一定是相同的，您仍然可以在部署时改变角色到用户或组的映射。

The canonical data model means fewer maps to write, and also if the data model of either a requestor or a provider was to change, it only affects their specific mapping to or from the canonical model.

标准数据模型意味着所需编写的映射将更少，并且如果请求者或提供者的数据模型要更改，它只会影响到与这个标准模型的特定映射。

The mapping specifications themselves are not persisted, which means any changes to the mapping would require to change the ETL code or to repeat the entire mapping process.

映射规范本身不是持久化了的，这意味着对映射的任何更改都需要相应更改 ETL 代码或重复整个的映射过程。

In addition, an administrator (or application deployer) must assign each role to the appropriate groups and users at deployment time, and maintain the mapping as groups and user change over time.

此外，管理员(或应用程序部署人员)在部署时必须向适当的组和用户分配每个角色，并且在组和用户随着时间的推移而更改时维护映射。