摘要： 数据流管理系统提出了一种通用结构模型，它采用窗口机制，连续查询以及相应的优化策略迅速高效地对实时数据进行在线分析处理。文章分析了数据流管理系统的框架结构和构成要素，讨论了其适用范围和优缺点，并指出当前研究中存在的问题及可能的发展趋势。

关键词: 数据流；数据流管理系统；窗口机制；连续查询；优化策略

Abstract: DSMS is a common model, which adopts window mechanics, continuous query and many optimizing strategy to online analyzing and disposing real-time data quickly and efficiently. This paper comprehensively analyzes the state-of-art of structure and components of DSMS,discusses their fitness, merit and demerit, and points out the problems which exist in the recent researches and the latest possible development trends

Key words: Data stream; DSMS; Window mechanism; Sequence query; Optimization strategy