需要系统管理员(如果您没有这些角色)定义组并为必须属于该组的每个人赋予从属关系。
You need the system administrator (if you are not in both roles) to define the group and grant membership to each person who must belong to the group.
厂商应该与您的系统管理员、数据库管理员密切合作，为工具管理和维护过程、角色，和职责定义路标。
The vendor should work closely with your system administrator, database administrator to define a roadmap for tools administration and maintenance procedure, roles and responsibilities.
我们定义四种角色来供用户在系统中选择。
We define four types of roles that the users can choose to play in the system.
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