| 1. | Based on the architecture , the paper discuss the component split principle and component design principle , and point out the technology of realize database base on the virtual database . in this dissertation , theory and methodology of information system software development have been founded 并在该体系结构的基础上论述了工艺信息系统组件拆分原则和工艺信息系统组件设计原则,并且提出了基于虚拟数据库的数据库实现技术,建立了可用于指导工艺信息系统软件开发的理论和方法体系。 |