基于UML模型的空间数据库可视化建模

针对传统数据库模式在建立庞大、多维、关系复杂的地理数据库模型的过程中存在语义表达不清等问题,本文研究了空间数据库模型在传统建模软件中的构建规律,设计了空间数据库模型在UML图中的表达方式及模板库和在XML文件中的存储规则,实现了将XML文件导入GIS数据库后自动生成控件数据库模型。通过在原型系统中的应用,表明了本文建模方法具有可扩展、方便修改、建模可视化的优点。

Modeling spatial database visually based on UML model

In process of building a large,multi-dimensional,complex relational geographical database model against the traditional database model often exists the problem that expressing semantic is too indistinct.In order to solve this problem,this paper studied the law of building the spatial database model in the traditional modeling software,designed the expression and template library of the spatial database model in UML diagrams,and designed the rules of storing in an XML file.What's more,it generated the control database model automatically after importing an XML file into the GIS database.Through the application of the prototype system,it showed that the method of modeling is scalable,easy to modify and visual for building model.