数据映象 meaning in Chinese

data mapping

With this syntax , the description of semistructured data can be unified to a formal way . second , we proposed an extensible xml - based semistructured data model for capturing and querying meta - data properties , and the mappings of xml data to this new data model is also presented . also with this data model , the meta - data ( properties ) in a semistructured data and the attributes of element in xml data can be unified
本文还对xml数据与半结构数据之间的关系进行了研究，并在此基础上提出了一种带有性质( property )的基于xml的半结构数据模型，同时给出了将xml数据映象到带有性质的半结构数据模型上的算法，从而将半结构数据中的元数据(性质)与xml文档中元素的属性统一起来。