EER模型中超类/子类到XML模式的转换研究

Research on the Transformation of the EER Model to XML Schema

针对目前所使用的增强型ER模型,本文介绍了对该模型中的超类/子类,特化和概化,以及超类型/子类型联系中的约束的无损语义转换方法。实践证明该转换方法具有很好的实用性,能对后续的算法设计起到很好的作用。

Aiming at the existing enhanced ER mode, this paper provides a new transforming method without losing any semantics between superclass and subclass, and the introduction of superclass, subclass, specialization, generalization of the mode is given. This method is effective in practice, which plays a very good effect on subsequent algorithm.