一种基于UML的双时态概念模型

随着数据库技术的发展，信息系统对时鸯信息的处理需求越来越强烈。尽管出现了一些时态数据库管理系统，如TimeDB，但这些时态数据模型仍存在着一些不足。该文参考双时态概念数据模型BCDM，对UML类图进行扩展，提出了一种支持时态信息概念建模的概念模型UTCM，UTCM能够支持对时态信息的概念建模，并易于在成熟的DBMS产品上进行实现；

A Bi-temporal Conceptual Model Based on UML

As the development of database,the management of temporal information becomes more and more important. Although some temporal database management systems,such as TimeDB,have been developed,there are insufficiencies in current temporal data models. Based on BCDM model,this paper propose a conceptual model UTCM by extending the class diagram of UML,which can the conceptual modeling of temporal information and the implementation of temporal database on traditional DBMS.