摘要
数据字典在整个信息系统生命周期里都起着重要的作用以野外数据采集系统为例，介绍了数据字典研制的基本方法，详细分析了表属性字典、字段属性字典、表格字段字典、索引信息字典、数据约束字典以及存储各表格关系的关系字典等多种字典的数据结构特征．
A data dictionary plays an important role in the life cycle of the whole information system. In this paper, is intreduced the basic method for the development of the data dictionary with the field data capture system as an example. Then a detailed analysis is made of data structural features in such dictionaries as the table attribute dictionary, the field attribute dictionary, the table field dictionary, the index information dictionary, the data constraint dictionary and the relation dictionary that can store various relationships between tables.
出处
《地球科学（中国地质大学学报）》
EI
CAS
CSCD
北大核心
1999年第5期539-541,共3页
Earth Science-Journal of China University of Geosciences
基金
国土资源部"九五"重点科技攻关项目!9506002
国土资源部矿产资源定量预测及勘查评价开放研究实验室基金
关键词
数据字典
野外数据采集
地质矿产
信息系统
data dictionary, field data capture, information system of geology and mineral resources,information engineering
