| 摘要: |
| 本文简述了主题数据库的概念，给出了企业的抽象描述，实体的相关度、实体的紧密度的概念和企业主题数据库规划估计的数学计算公式．文中还给出了一些验证主题数据库规划估计的例子. |
| 关键词: 数据库 实体 主题数据库 系统模型 战略规划 |
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| MATHEMATICAL FORMULA OF EVALUATING THE RATIONALITY OF SUBJECT DATABASES |
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WANG Yushu,DONG Piming
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| Abstract: |
| In this paper, the authors state the concept about subject database, then give an abstract, description of enterprise model and present entity affinity, entity set affinity and the formula evaluating the rationality of enterprise subject databases. Some examples to verify the formula are shown. Finally, the purposes of the formula are pointed out. |
| Key words: Database entity subject database system model strategic planning |
