| ER模型的语义概念集合和表示法 |
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| 引用本文： | 包海挺,刘飞飞. ER模型的语义概念集合和表示法[J]. 科技情报开发与经济, 2006, 16(6): 217-220 |
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| 作者姓名： | 包海挺 刘飞飞 |
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| 作者单位： | 江西理工大学,江西赣州,341000 |
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| 摘 要： | ER模型能够清晰地表达现实世界的实体、联系和约束。主要从数据结构、数据操作、数据的约束条件3个方面归纳了ER模型所支持的语义概念集合,介绍了几种在应用中使用比较广泛的表示法,并对它们所支持的概念集合、图形表示法和CASE支持工具等进行了比较。
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| 关 键 词： | ER模型 语义概念集合 表示法 |
| 文章编号： | 1005-6033（2006）06-0217-04 |
| 收稿时间： | 2006-02-28 |
| 修稿时间： | 2006-02-28 |
Semantic Concept Set of the ER Model and Its Representation |
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| BAO Hai-ting,LIU Fei-fei. Semantic Concept Set of the ER Model and Its Representation[J]. Sci-Tech Information Development & Economy, 2006, 16(6): 217-220 |
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| Authors: | BAO Hai-ting LIU Fei-fei |
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| Abstract: | The ER model can be used to express the entity, connection and restraint of the actual world, sums up the semantic concept set supported by ER model mainly from the data structure, data operation and data restraint condition, introduces several kinds of the representations that are used more widely, and makes the comparison of the concept set and graphic representation supported by these representations and the tools supported by CASE. |
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| Keywords: | ER model semantic concept set representation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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