用户使用4a系统统一进行账号的创建、授权与审计，并通过登录4 A系统来统一登录以上各种资源。
Users can manage users accounts' creating, authorization and auditing operations through 4a system, and login the systems above by login 4a system.
本文所设计和实现的统一身份认证平台在应用到实际校园网络后，有效整合了校内所有应用系统，将各系统的身份认证账号规范化，进行统一管理。
It can integrate all application system in the campus after this UAP is used in digital campus network. It will standardize account number management of each system.
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