【摘要】 时间是信息的重要属性。随着数据库与信息技术的深入和发展 ,时态信息在信息系统扮演着日益重要的角色。将时态信息研究的起源与发展分成 3个时期 ,简述各个时期研究情况和代表性成果。还分析了国内外时态信息有关研究文献 ,介绍了几种代表性时态数据模型 ,对时态信息技术研究现状与存在的不足 ,以及未来的发展都给出了作者的见解。更多还原

【Abstract】 Temporal is the essential attribute of information which plays a very important role in information systems. In this article the process of the development of temporal information is divided into three phrases, and major research works and representative achievements during each phrase are introduced briefly. Also some main temporal data models are introduced in this paper. The authors give their views on the present research status, the existing problems and the future of temporal information research.更多还原