3.1.20 数据模式字典(Data Schema Dictionary): 3 字典形式从名称、定义、英文名称、英文短名、版本标识、状态、来源、注释等多个方面来描述模型中的实体、属性,从而能够严格...
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实现方法是创建一个压缩的符号字典,取代行级重复数据模式。
It does this by creating a compression dictionary of symbols which replace repeating data patterns at the row level.
具体来说,数据交换工具将给定的源数据模式,依据标准的数据模式(数据字典),转换为本地目标数据模式。
Specifically speaking, a given source data pattern can be converted to a local target data pattern according to the standard data pattern (the data dictionary) by the data exchange tool.
针对传统信息模型中,数据字典的构建模式无法接纳新资源信息的加入,扩展性较差的不足,提出了一种可扩展的数据字典体系的结构设计方法。
One of the limitation for traditional data-dictionary design pattern in information systems is short of expansibility, and it is unadapted for the appearance of new information resources.
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