关于将类图映射成关系表的策略研究OA

In this paper,the strategy of mapping class diagram to table in relational database is studied.Firstly,the data model of class diagram is established by using Rational Rose 7.0.By setting different visibility for classes and using various relationships between classes in class diagram,then the rule of mapping class diagram to relational table is discussed.The result of practice shows that the mapping of class diagram into tables in relational database depends on two factors,namely,the visibility of classes and the relationship between classes.And it is found that Rational Rose 7.0 software does not take into account that when the visibility of the attribute is different,the corresponding attribute in the mapping table should also be different.