面向地理信息服务链的工作流技术应用研究

通过分析借鉴当今服务链技术与工作流技术研究成果,充分考虑地理信息数据量大、数据源异构性的特点,对适于地理信息服务链的过程建模方法、过程定义语言、建模工具以及工作流引擎的体系结构、调度算法、应用框架进行重新设计,实现了地理信息服务的可视化组合建模和服务链的自动执行。

Research on Workflow Application for Geographic Information Service Chain

Digital geographical base map is an indispensable part of the geological environment investigation. Since most of the base map datas is not present datas, it is necessary to discuss how to renew them. In this paper, the method for renewing geological base maps based on Google Earth is introduced, its steps and precision are analyzed as well. It is regarded that this is a simpler and effective method with wide application field.