节点文献

电子政务与空间信息集成的理论及实践

Theory and Practice on Integrating E-government and Spatial Information

【作者】 李卫江

【导师】 张超;

【作者基本信息】 华东师范大学 , 人文地理学, 2004, 博士

【摘要】 “数字地球”、“数字城市”战略的提出及其在全球范围的强势推进,使空间信息的集成应用呈现出了日新月异的变化。以GIS为核心的空间信息技术也以前所未有的速度向社会各个行业和领域渗透,并逐步发展成为信息技术的核心。同时,“以政府信息化带动国民经济和社会信息化”战略的提出,使得“电子政务”工程成为社会信息化最活跃、最受瞩目的领域。政府的管理本质上是对区域的管理,政务信息资源在很大程度可以归结为地理空间信息。政务信息的地理空间特性与位置关联性,使得空间信息及其GIS空间信息技术在电子政务的各个环节发挥着日益关键的作用。随着政府公共事业决策过程的进一步信息化、公开化、科学化、民主化,GIS技术将成为电子政务系统构建技术的前沿与核心。 论文以上海市区县级政务GIS应用示范工程——“静安区GIS综合平台的研制与开发”和国家863项目——“基于SIG的城市(上海)空间信息服务系统——不同数据格式、不同投影坐标空间数据整合研究”(2002AA134020—03)为实例支撑,对电子政务与空间信息集成的理论、方法、技术进行了较为全面的研究。 论文共分为六章。第一章是“绪论”。本章重点阐述电子政务的相关概念和内涵;阐述了电子政务发展中的地理空间信息需求以及GIS空间信息技术在电子政务系统中的作用;接着对国内外电子政务空间信息集成应用的现状和模式进行了简要的分析和评价。第二章是“电子政务空间信息集成的理论基础及关键技术”。其中,基础理论包括政务信息化与政务信息科学理论、基于“OA+MIS+GIS”集成的OGIS和MGIS理论、空间决策理论、计算机支持的协同工作与协同式GIS理论。关键技术包括ComGIS技术、WebGIS技术、J2EE架构和XML技术。第三章是“电子政务与空间信息集成的IGS框架”。本章首先提出了电子政务与空间信息集成的IGS框架及其层次结构,认为应该从网络通信层、数据层、应用支撑层、应用服务层和标准与安全支撑环境五个方面构建IGS应用平台。接着,以“静安区GIS综合平台”为例,从综合软件框架、多层逻辑模型、WebGIS中间件的关键技术、网络模型与物理架构、安全机制等方面对城市区县级政务GIS的框架构建进行了深入的理论和实践研究。第四章是“面向电子政务的Web空间信息交换、集成与共享”。本章主要从政务数据组织与数据共享的角度进行讨论。首先,从电子政务网络空间信息集成的主要模式进行了简要分析,其中包括了地理空间信息的集成、业务统计信息的集成、空间信息与业务统计信息的集成。接着,以静安GIS综合平台——数据交换、集成与共享系统的设计和开发为例,提出了“基华东师范大学2004届博士学位论文电子政务与空间信息集成的理论及实践—摘要-曰曰.曰.....-一............,.....,....侧.口口.网,............口....于元数据和数据格式转换相结合的满足语义共享的空间数据集成”、“基于XML交换标准的业务数据交换与集成”和“基于地理编码驱动的空间数据和业务数据动态集成”的思想和技术实现方案。第五章是“电子政务空间决策支持系统的设计与实现”。本章主要探讨空间信息集成的电子政务系统决策应用。首先对空间决策支持系统、WebGIS技术支持下的广义电子政务决策支持应用需求等问题进行了简要的论述。接着以静安GIS综合平台—决策支持系统为例,探讨系统的体系结构和实现的关键技术。最后以静安区商务楼宇投资环境评价与分析、突发事故应急决策支持、经济增长与人口、劳动力就业决策支持等模块的开发与实现为例,进行了较为详细的实证研究。其中涉及了AHP多准则与多目标决策、WebGIS空间分析、人口学模型分析、Jfreechart Web图表可视化等相关问题。 概括起来,作者认为,论文主要有以下成果: (1)将GIS,特别是当前比较前沿的ComGIS、WebGIS、VR一GIS技术与JZEE架构、XML技术标准相结合,与区县级电子政务的业务流程、决策应用分析相结合,提出了电子政务与空间信息集成的工GS框架和“GIS+以+MIS+DSS”集成的电子政务建设模式。目前,国内外在电子政务与GIS集成方面的理论与实践相对较少,还处于概念探讨的初级阶段。本文是对电子政务与GIS技术相结合的理论、技术与实践的进一步深层次推进。 (2)从技术的角度,提出“基于元数据描述和数据格式转换相结合的、满足语义共享的空间数据集成”、“基于XML交换标准的业务数据交换与集成”和“基于地理编码驱动的空间数据与业务数据动态集成”的电子政务信息整合模式,并以静安GIS综合平台—数据交换、集成与共享系统为支撑,进行了自主软件包的研制和开发。对现有政务GIS平台的信息集成与共享具有重要的借鉴意义。 (3)从技术的角度,提出了WebGIS环境下基于“模型构件库”、“数据仓库与数据挖掘”模式的电子政务空间决策支持系统的体系架构。对空间分析模型构件化、模型的存储与组织、WebGIS平台与空间分析模型的集成、Web环境下的Jfreechart统计图表可视化等理论和技术难点提出了切实可行的解决思路和方法。并以静安GIS综合平台—空间决策支持系统为支撑,进行了软件开发。对_于解决现有WebGIS平台空间分析

【Abstract】 The strategy of "digital earth" and "digital city" have been proposed and extended in the worldwide scope, which changes the application of geospatial information quickly. The geospatial information technology, based on GIS, has spread in every industry and field at an unbelievable speed, and become the key of information technology step by step. Meanwhile, the proposed strategy, "society and economy IT Infrastructure driven by government IT infrastructure", makes the "E-government" project to be a most active and attentive field. The essence of government management is about local region, in which information is about geographical and spatial to a great extent. The geospatial character and positional connection of government information makes the geospatial information and GIS technology play a key role in each link of e-government affairs increasingly. Along with further development of informatization, explicit, scientificity and democracy in government decision processing of public affairs, GIS will be the core and frontier in the e-government system construction techniques.Based on a case study of "Research and development of integrated GIS platform in Jing’an district", which is a demonstration of GIS application at county level government in Shanghai, and aided by national 863 plan-"Research of city geospatial information serving system based on SIG", the paper is mainly on the comprehensive study of theories, techniques and methods related to integration of geospatial information and e-government(IGS).The thesis totally is divided into six chapters. Chapter 1 is a "introduction". It firstly focuses on concept and content of e-government, and then tells the demand of geospatial information and function of GIS in e-government system. At last, this chapter analyzes the application status of geospatial information in e-government at home and abroad. Chapter 2 is "the theory foundation and key technology of IGS". The basic theory includes: Governmental Information Science; Integration of OA,GIS and MIS; Spatial Decision-making; Cooperated Working Supported by Computer and Cooperating in GIS. The later part involves many key techniques like ComGIS, WebGIS, J2EE, XML and so on. Chapter 3 is "the frame and model of IGS". Above all, introduces the general model of IGS, which should include 5 parts,that is, data, network, application support, application services and safe and standard supporting environment. And then, based on the Jing’an system, has a study on the theory and practice of county level IGS frame from the following aspects: synthetical software frame; multilayer logical model; middle-ware of WebGIS; linking of the network and security mechanism. Chapter 4 is "the geospatial information exchange, integration and sharing in IGS". It mainly discusses governmental information organization and sharing. Firstly, simply analyses the main mode of information (data) sharing in IGS,including integration of geospacial information, business statistical information and integration of the two. And then, based on the Jing’an system, puts forth to the following methods and schemes:"Geospatial data integration based on metadata and format conversion for the premise of GIS semantic sharing", "Exchanging and integration of business data on XML protocol", "Dynamic integration of geospatial data and business data by geocoding". Chapter 5 is "Designing and realization of DSS in IGS". First, it analyzes the theory of DSS and demand of DSS aided by WebGIS. Then, based on the DSS in Jing’an system, researches the structure and key technology of system. Finally, demonstrates in detail as following: evaluation and analyse on business investment environment of scriptorium in Jing’an area; decision support for emergency; decision support for economic increase, population and labor employment. Involving such subject as AHP, spatial analyse and decision-making aided by WebGIS software, professional models in demology, web charts visualization based on Jfreechart, and so on.Achievements in the paper are summarized as follow

  • 【分类号】P208
  • 【被引频次】15
  • 【下载频次】1544
节点文献中: 

本文链接的文献网络图示:

本文的引文网络