基于PowerDesigner的公路工程地理信息平台数据库建模

利用CASE工具PowerDesigner,设计了公路工程地理信息平台数据库模型。本文首先简述了PowerDesigner的建模方法与步骤,在分析平台系统总体结构的基础上,探讨了公路工程数据的组织,以及利用PowerDesigner建立概念数据模型和物理数据模型等建模的关键问题,通过广东省公路工程地理信息平台数据库建模实践,验证了文中的建模方法。

Power Designer Based Highway Project Geographical Information Platform Database Modeling

Power Designer,a powerful CASE tool is used to build database models of highway project geographical information platform. This paper introduces the modeling methods and processes.The structure of the highway project data is discussed based on the analysis of the general system of platform.Both the conceptual data model and the physical ones related to highway project database are also designed.The methods have been successfully applied and tested in Guangdong highway project geographical information platform database modeling.