摘要
为方便地学数据库设计,缩短建库周期,避免建成的数据库结构不能更改以及使建成的数据库能更好地为地学信息共享服务,提出了地学数据库的智能建模方法.该建模方法采用国家标准分类术语代码辅助设计技术和数据字典技术来辅助数据库设计,对数据模型进行标准化设计,并在设计过程中提供了相关的术语代码字典以支持数据库的标准化数据采集,促进了地学信息共享,同时提供了相应的数据库模型字典,为后期的数据库结构的变动提供支持.
A novel intelligent modeling method is proposed for geosciences databases. The method can facilitate the design of geosciences databases, shorten the period of databases building, avoid the defect that the structure of built databases can＇t be reconstructed, and share the geosciences information more conveniently. The National Standard Terms and Codes aided design （NSTCAD） technique and the data dictionary （DD） technique are introduced to aid the databases＇ standardized design in the method. The NSTCAD technique makes full use of National Standard Terms and Codes in the modeling process and serves the standardization of data models. In the process of design, the corresponding terms and codes data dictionary for collecting the standardized data and facilitating the share of geosciences information is provided and the model data dictionary of the corresponding database for supporting possible reconstruction of the database in future are both provided.
出处
《同济大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2007年第5期690-694,共5页
Journal of Tongji University:Natural Science
关键词
地学数据库
智能建模
数据字典
国标
geosciences database
intelligent modeling
data dictionary
national standard terms and codes
