基于Web Services的多源异构空间信息集成框架

为解决企业分布式多源异构地理空间数据互操作的瓶颈问题，设计了基于WebServices 的四层多源异构空间信息集成框架。利用Web Services 技术，OGC 地理信息服务实现规范，和W3C 标准的可缩放矢量图形成像模型(SVG)的集成，通过构建空间数据转换服务集成器，在用户和服务之间提供一种透明的松耦合，跨越系统底层的异构性，进行异构空间数据的互操作和显示，从而实现了多源异构地理空间信息集成与共享。在国家地震网络计算应用系统（SECAS）建设中，基于以上框架采用.NET 平台进行设计并得到了初步应用。
关键词：Web 服务；异构空间信息；集成框架；地理标识语言；可伸缩矢量图形
Abstract：To deal with the bottle-neck of enterprise distributed multi-source heterogeneous
geographic spatial data’s interoperating, the four-tier integration framework of multi-source
heterogeneous spatial information based on web services is designed. Through the integration of web services technology, the geographical information service criterion of OGC and the scalable vector graphics model (SVG) of W3C, the integrated device of spatial data
translating services is constructed, which can realize the heterogeneous spatial data’s
interoperating and showing by spanning the system’s heterogeneous and providing a kind of transparent loosely coupling relation between the users and the servers, lastly multi-source
heterogeneous geographic spatial information can be integrated and shared. It is primarily
designed and applied in the State Earthquake Computing Application System (SECAS) based
on the above framework and .NET platform.
Key words：Web Service; Heterogeneous Spatial Information; Integration Framework; GML;
SVG