SACM not only provides a mechanism to organize topology but also constructs the relationship between resources and topology which is the essential difference between structured and unstructured P2P.

• SACM不仅提供了生成聚类拓扑的算法；更为重要的是；它通过兴趣的定义及维护从统计上在资源和网络拓扑之间建立了联系.；是否存在这种联系正是结构化P2P于非结构化P2P的本质区别