Then EIP system architecture design is analyzed, use modular approach, to realize the portal single sign-on, background authorized management, unified messaging management, user management, personalized home management, organizational structure and the core subsystem, based on which to engage in detailed analysis. 然后分析EIP系统的架构设计,并利用模块化方法对门户单点登录,后台授权管理、统一消息管理、用户管理、首页个性化和组织结构管理等核心子系统进行详细的分析。