摘要
本文提出了一个O-O工程数据库模型,给出了对象、关系及操作的形式表示,通过实例阐明了OBJ体现几种语义关系的方式.最后,给出了几种主要操作的例示和说明.
An O-O engineering database model called OBJ is proposed. It is elucidated by taking the following form. At first, the formal descriptions for objects, associations and operations are given. Then, the representation features of various semantics' in OBJ are shown. Finally, some main operations are exemplified and explained.
出处
《计算机学报》
EI
CSCD
北大核心
1991年第12期923-932,共10页
Chinese Journal of Computers
基金
上海市青年科学基金
关键词
工程数据库
数据库
模型
OBJ
Semantic data model, O-O semantic database model, rapid prototypingsystem.
