基于GIS的决策支持系统数据集成技术研究

【作者】 马爱军；

【导师】 王延章；

【作者基本信息】 大连理工大学 ， 系统工程， 2002， 硕士

【摘要】 地理信息系统(GIS)与决策支持系统(DSS)各自发展多年，有了很多成型的实例。但是，随着信息技术的不断发展，新的需求不断出现，传统的GIS和DSS都逐渐显示出弊端。从目前大多数GIS的情况来看，它们尚停留在空间数据获取、存储、查询、分析、显示、制图、制表的水平上，缺少对复杂空间问题决策的有效支持能力，很难满足各级决策者的需要；而传统的DSS是片面的信息系统，仅针对非空间的数据和信息，而信息却包括非空间信息和空间信息。空间信息与人类的生存、发展、进步密切相关，在现代生活中，对空间信息的管理尤为重要。 围绕这个问题，本文在这两个原有系统的基础上，提出了一种新的模式——基于GIS的决策支持系统，本质上就是将地理信息系统与决策支持系统相结合，将决策支持架构在空间数据上，为领导提供更直观、更生动、更形象的信息服务。进而在此模型框架的基础上，本文深入研究了空间信息的组织、各种异构空间数据与异构经济数据的一致性问题、GIS与DSS内部数据的集成方法、外部信息的动态加载方法等，并解决了引入空间海量数据后系统的运行效率问题。 本文以国家“九五”重点科技攻关项目：“国务院国民经济辅助决策地理信息系统”为研究背景，从开发系统的实际经验出发，以数据集成为切入点，系统的研究了GIS与DSS的集成方法，研究结论在项目中得到了很好的应用。更多还原

【Abstract】 During years of developing respectively, the Geographic Information System (GIS) and Decision Support System (DSS) have formed its own examples. However, with the everlasting developing and increasing demands, the traditional GIS and DSS show gradually drawbacks. Analysed from the present performance of GIS, they are still staying at the traditional level, such as in the aspects of getting data, restoring, querying, analysis, display, drawing picture and tables. All this shortcoming are mainly due to its incapability of supporting the decision of complex problems. And traditional DSS is a unilateral information system, only based on the data of non-spatial. With the developing of information technology, the management of spatial data is regarded as more and more valuable and important.Considering all of these, this articles will propose a new model frame basedon these two traditional ones-Spatial Decision Support System, whichintegrated the spatial data and decision support data to form a new system. This new system can offer a direct, vivid, picturesque information service. Based on this mode frame, the article makes a further research in the organization of spatial data, coherence of the various spatial data and decision support data, integrating methods of the inner data of GIS and DSS, methods of dynamically loading of outer data, and make a solution to improve the executing efficiency after importing the huge spatial data.The background of the article is the project of "Geographic Information System supported by national economy" set by the State Council, which is one of the key project of national 9th five-year plan. Summing up practical experiences, the article analyses the integrating method of GIS and DSS systematically. The conclusion had found a good application in practical projects.更多还原