The main task includes design, develop and test of Entitlement Control Message Generator(MG) and Entitlement Management Message. The design and develop of interface of CA system and subscriber manage system. 主要工作内容为授权管理信息产生器和授权控制信息产生器的设计和开发调试,条件接收系统与用户管理系统的接口设计和开发。