GIS应用数据库设计方法

GIS applied database design

空间信息数据概念模型的建立和业务数据库结构设计是GIS应用数据库建立过程中最主要的两部分工作。能否选择恰当的数据概念模型和数据库结构设计方法是数据库设计能否获得成功的关键所在。通过分析二阶分析模式,一阶分析采用面向对象整体数据模型建立GIS数据库的底层空间数据模型,二阶分析采用语义对象模型设计出实用的数据库结构。并提出了用象形图结合UML的模型表达方式。并以具体实例验证了二阶分析模式及其表达方式的可行性。

The building of conceptual model of spatial information data and designing structure of transaction database are two main jobs in the process of GIS applied database design. Whether selecting fight data concept model and database structure design method or not is the key problem of database design. An analysis mode for GIS database design called two-order analysis mode is analyzed and adopted, one is to build the bottom spatial data model of GIS database with the object-oriented integrity data model, and the other is to design applied database structure with the semantic object model. The method of representing the object-oriented integrity data model with UML and pictogram is presented and the semantic object model is also build with UML in order to be consistent with the object-oriented integrity data model. A practical design testifies the feasibility of the mode and its representation.