基于BPEL的地理信息服务组合研究与实现

地理信息服务发展是地理信息系统发展的必然趋势,然而,单独的地理信息服务能力有限,需要对其进行组合来满足用户需求。本文在分析了当前国内外基于工作流技术在实现地理信息服务组合的研究成果基础上,提出了一种用户参与组合的地理信息服务组合简化框架,并结合实例详细讲述了基于业务流程处理语言(business process execution language,BPEL)实现地理信息服务组合的过程。最后,对地理信息服务组合的发展思路和进一步的研究路线进行了探讨。

Research and realization of composition of geographic information system services based on BPEL

Improved geographic Information Services is the inevitable trend of the development of GIS.However,the capacity of individual geographic information services is limited.To be satisfied with customer's complicated demand,the combination of geographic information services is required.Based on the analysis of the current workflow technology at home and abroad in achieving the composition of geographic information services,the paper provided a simple framework,which needs user's participation,about composition of geographic information services.And then,combined with an example,the paper introduced the geographic information services composition process with BPEL(business process execution language) detailed.Finally,the development ideas for the composition of geographic information services and further research were also discussed.