这种政策处理的问题是，谁拥有权限在不同的模型层之间，来回移动模型变更。
This policy addresses the concerns about who has the authority to move model changes back and forth across model layer boundaries.
LBAC使您可以决定谁拥有不同行和列上的写访问权限，谁拥有读访问权限。
LBAC lets you decide exactly who has write access and who has read access to individual rows and individual columns.
通过流程控制达到了不同的人员拥有不同的权限，其中管理员拥有最高的权限。
Through the process control to a different staff have different authority, which administrators have the highest competence.
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