基于服务组合的GIS应用模型集成方法研究  

Research on integration method of GIS-based application model based on web service composition

作　　者：杨富平[1] 李林[1,2] 丰江帆[1] 武志涛[1] 

机构地区：[1]重庆邮电大学计算机科学与技术学院,重庆400065 [2]重庆市地理信息中心,重庆401121

出　　处：《计算机工程与设计》2011年第1期133-137,共5页Computer Engineering and Design

基　　金：国家自然科学基金项目(40801214);重庆邮电大学博士启动基金项目(A2008-01);重庆市科委科技基金项目(CSTC;2009CB2015)

摘　　要：针对当前GIS应用模型集成过程中存在的数据和功能冗余、模型难以复用等问题,指出基于Web服务组合技术在GIS应用模型集成中的优势,提出了一种GIS应用模型驱动的服务组合方法,并详细阐述了模型分解、服务组合流程、服务选取及实现技术等,为扩展GIS的应用功能提供了一种可行的解决方案。最后,以震害应急指挥过程为例表明了该方法能有效提高模型集成的灵活性和复用性,有较高的应用价值。Aimed at the problems in the process of integration of GIS and application model,such as redundancy,difficulty to reuse the model and so on,the advantages of web services composition technology are pointed out,and a model-driven web services composition method is proposed,and then the model decomposition method,web services composition process,web services selection method and implementation technology are described in details.A viable solution for GIS to expand its application functionality is provided.Finally it take the process of earthquake disaster emergency command as an example to illustrate the method,the result shows the method can effectively improve the flexibility and reusability of model integration process.

关 键 词：SOA GIS应用模型 模型集成 WEB服务组合 应急指挥 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]