摘要
主题数据库是信息化建设的重要内容之一;首先,运用数学的语言对主题数据库的规划进行了描述;然后介绍如何通过计算信息系统中各个实体间的相关系数来进行主题数据库的规划;最后,提供了用全域系统体系C—U矩阵和主题数据库的质量评估函数对规划出来的主题数据库进行评估的方法。
Subject database is one of the most important content of the information construction ; Firstly,the paper tells that how to describe the planning of subject database by applying mathematic language; Followly,the paper shows the method of the planning of the subject database, which is to calculate the relation coefficient of entities of the information system ;The paper also provide two kind of method that judging the rationality of the planning of subject database, which is to use the C-U matrix of the whole information system and the function of quantity valuation on subject database.
出处
《价值工程》
2005年第9期61-63,共3页
Value Engineering
关键词
主题数据库
实体
相关系数
业务活动
subject database
entity
the coefficient of relation
business activity
