Through analyzing Internet cache protocol ( ICP ) and cooperative web caching system based on concentrated management ( CMCS ), a domain distributed cooperative web caching system model is proposed. 在分析Internet缓存协议(ICP)(ICP)和基于集中管理的协作式Web缓存系统(CMCS)的基础上,提出了一种域分布式合作Web缓存系统模型(DDCCS)。