中文摘要：

信息共享是群体信息管理的核心,而P2P技术的一个重要应用是信息共享。因此可以将P2P技术与群体信息管理相结合,探讨基于P2P技术的群体环境下成员如何进行信息共享。首先介绍群体信息管理、信息共享、P2P等相关概念,然后调查分析P2P在群体信息管理中的共享优势,并结合Napster、六维空间等相关实例进行介绍。其次,探讨了3种基于P2P技术的群体信息共享模型,包括集中式、分散式和混合式。最后对基于P2P技术下群体信息管理中信息共享的隐私问题进行总结,并提出相应对策。

英文摘要：

Information sharing is the core of the group information management. One of the important applications of P2 P technology is information sharing. So this paper combines P2 P technology with the group information management,and then discusses how to share information in the group environment based on P2 P technology. First,this paper introduces the concept of group information management,information sharing,P2 P and other related concepts,and then analyzes the advantages of P2 P in the group information management, and introduces the relevant examples like Napster and6 V. Second,it discusses about 3 kinds of information sharing model based on P2 P technology： centralized model,distributed model and mixed model. Finally,the privacy of information sharing in the group information management based on P2 P technology is summarized,and some corresponding countermeasures are put forward.