【作者】 陈宁；

【导师】 李峰；

【作者基本信息】 江苏大学 ， 计算机应用技术， 2007， 硕士

【摘要】 地理信息系统(Geographic Information System，GIS)具有集成管理海量空间数据和属性数据的能力，被广泛地应用到各领域。随着其应用的深入，人们在业务应用中越来越重视空间数据和非空间数据的整合、共享、以及协同处理能力。工作流技术是实现业务过程与数据整合，提高部门间协同能力的有效手段，因此工作流技术与GIS技术的有机结合，将大大提高地理信息应用系统数据集成和业务协同能力。本文以基于GIS的路政设施管理为背景，对面向GIS的工作流技术展开了深入的研究，给出了一个面向GIS的工作流系统框架，并在此基础上实现了基于GIS的路政设施管理系统。论文主要工作如下：(1)在深入分析研究WfMC提出的工作流参考模型和XPDL工作流定义语言的基础上，结合GIS应用的实际需求，给出了一个支持GIS应用的工作流模型，在此基础上给出了该模型的一种可视化表示方法。(2)结合GIS系统中的空间版本数据库技术，在Sagas高级事务模型的基础上给出了一个支持版本的Ver_Sagas事务模型，满足了GIS应用系统中长事务的处理需要。(3)引入了微工作流引擎的概念，从够用、灵活和低成本的设计原则出发，摒去了传统工作流引擎追求功能完备和复杂的特点，给出并实现了一个面向GIS的微工作流系统框架。(4)在上述研究的基础之上，结合城市路政设施管理的实际需求，以面向GIS的微工作流系统框架为基础，设计实现了基于GIS的城市路政设施管理系统。实践表明，本文所给出的面向GIS的工作流系统框架是有效的。更多还原

【Abstract】 Geographic Information System(GIS) can manage large scale spatial information and attribute information, and has been widely applied in many fields. More deeply applied , more attention was paid on the GIS’s capabilities on the combination, share and cooperation of spatial and non-spatial information. The workflow technology can combine the business pocess with information, and improve the cooperation of different departments. The combination of the workflow technology and GIS can largely improve GIS’s capability of information integration and process cooperation.Based on the Geographic Information System for road-infrastructure management, this paper deeply analyses on the workflow technology for GIS, and a workflow technology framework for GIS is presented. Based on the framework, a system has been carried out and applied to the traffic control. The main search has three points:(1) After the study on the WfMC’s workflow reference model and definition language—XPDL, a workflow model, which is fit for the GIS application, is presented. And a relevant graphical display method is realized.(2) Using the version technology in geodatabase and based on the Sagas transaction model, the Ver_Sagas transaction model is presented to fit the long transaction of spatial operation.(3) The micro-workflow technology is introducted. With the design principle of agility and low cost and after getting rid of traditional workflow’s disadvantage of entirety and complexity, a micro-workflow framework for GIS is presented and is also realized.(4) Based on the above research and applied for road-infrastructure management, a road-infrastructure management system is built on the foundation of the micro-workflow framework for GIS.In practice, the micro-workflow framework in this paper is effective.更多还原