节点文献
空间决策支持系统的可视化技术研究与应用
The Research of Visualization Technology in Spatial Decision Support System
【作者】 钟大伟;
【导师】 池天河;
【作者基本信息】 福州大学 , 环境工程, 2004, 硕士
【摘要】 随着人类社会的发展,我们面临的决策问题越来越复杂,且大部分的决策问题都与空间位置有关,因此空间决策支持理论与技术的研究至关重要。空间决策支持系统是空间决策技术与信息技术相结合的产物,它通过不断的吸收新的技术成果而得到发展。目前,空间决策支持系统在与空间问题有关的各领域内已经得到了广泛的应用,并已发展到了一个新的阶段。但同时也存在着一些问题,如需求的不确定性、模型软件层次重用率低、模型交互可视化表达能力低等。针对这些问题,本文通过对空间决策支持系统建设中的关键通用技术研究的基础上,讨论了这些问题的解决方法。本文主要研究内容与创新点如下: 1. 详细分析和论述了决策理论、决策支持系统的发展过程与基本理论,提出了DSS的动态发展的新特性。2. 根据DSS的动态发展的特性,在比较了各种软件工程技术基础上,提出应采用“统一软件过程”为SDSS研发的软件工程指导思想。并研究了基于CASE工具的系统可视化建模技术,基于组件的分析模型与GIS的集成方法,分别论述了基于COM与JavaBeans组件模型的集成策略;3. 提出了一种面向系统开发的模型分类,并详细论述了各类模型的建模理论及其与GIS的关系。在这种分类基础上,针对当前SDSS建设重复开发且通用基础分析功能弱的现象,提出了一种新的通用开发策略。4. 针对模型的交互可视化表达能力弱的问题,提出应该加强可视化在SDSS中的作用的新观点,论述了可视化技术在决策支持中的信息表达和更高层次的应用分析,并在对各种可视化概念与技术形式的分析总结基础上详细的论述了数据可视化、分析模型可视化的理论技术,并讨论了网络可视化的技术实现特点。5. 完成了一个空间决策支持系统的实证研究。应用以上各种理论技术到SDSS建设的实践中,取得了良好的效果。
【Abstract】 With the development of our society, the situation we confront everyday is becoming more and more complicated, and most decision problems have something with spatial position. Therefore the spatial decision support theory and technology research is very important. Spatial decision supporting system is a combination of spatial decision technology with information technology, and makes progress by absorbing new technology constantly. Now, spatial decision supporting system has been used widely in many fields. Whereas, there are several problems such as the drastic repetitive construction, lower model reused percent in the software level, the low-frequent interaction in model visualization, etc. In order to solving the above problems, This paper discusses the solution of these situations on the research of key common technology of spatial decision supporting system. 1. This paper analyzes the general development and basic decision theory, decision support system, and bring out the new characteristic of dynamic development of DSS.2. On the base of the new characteristic of DSS and comparison of several software engineer technology, we adopt "United Software process" as a development principle of SDSS. Further, we make research on visualization modeling technology based on the tool of CASE, the integration method of analyzing model with GIS based on component technology, and discuss the integrating strategy with COM or Javabeans.3. This paper sets forth a development-faced model assort, and discuss modeling theory of every type model and the integration of model with GIS. Based on the assort, This paper puts forward a new general strategy of development.4. On the problem of the low-frequent interaction in model visualization, we emphasize the visualization function in SDSS. We illuminate the visualization technology can use not only in expression but also in analysis. And this paper sums up all the form of visualization technology, then discusses the theory and technology of data visualization, model visualization in detail,and the technology characteristic to realize visualization the Web environment.5. Using several kinds of theory technology in SDSS building, we implement an example and achieve a good result.
【Key words】 SDSS; GIS; Visualization; United Software Process; Model Integration;
- 【网络出版投稿人】 福州大学 【网络出版年期】2004年 03期
- 【分类号】P208
- 【被引频次】4
- 【下载频次】492