Elements are as important in XML design as classes in object design or entities in relational database design.

元素对于XML设计的重要性，类似于对象设计中的类和关系数据库设计中的实体。

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In relational database design, the process of organizing data to minimize redundancy is called normalization.

在关系型数据库设计中，这种组织数据以减少冗余的过程，被称为规范化。

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The mapping strategies from object model to relational database model are the core of object-oriented relational database design.

结合油气储运网络管理系统的一期工 程实践，对对象模型向关系数据库模式映射的策略进行了讨论。

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