摘要
ＳＤＡＩ是ＳＴＥＰ的数据接口规范，它为工程应用与ＥＸＰＲＥＳＳ描述的数据模型间定义了一个功能界面。本文讨论了关系数据库上ＳＤＡＩ实现的方法，阐述了ＳＴＥＰ模型与关系模型的一种转换机制，开发了关系数据库上数据交换ＳＤＡＩ接口函数库。
SDAI is the standard data access interface of STEP.It defines a functional interface between an engineering application and one or more collections of data described using EXPRESS.This paper discusses a method of SDAI implementation on relational databases,expounds a conversion mechanism between the STEP model and the relational model,and develops a SDAI interface function library of data conversion on relational databases,thus provides the basis for the engineering application of STEP.
出处
《计算机工程与科学》
CSCD
1997年第4期5-9,共5页
Computer Engineering & Science
