Architecture for service-oriented WebGIS in the mode of multilevel-multilayer organizing

摘要

Service-oriented WebGIS is becoming a new trend of WebGIS. Under this schema, GIS data and operations are enveloped into self-organized as well as self-described GIS web services. Via flexibly assembling theses web services, GIS applications can be designed and implemented. Based on such, the bottleneck in spatial data sharing and GIS operations can be widened to a certain extent. In this article, architecture for service-oriented WebGIS in the mode of Multilevel-multilayer Organizing was focused on, and the hierarchical architecture for GIS web services, multi-level query for GIS Web services as well as functions of intelligent manager were presented and demonstrating. In a case study, a land use planning management information system for Yubei district, Chongqing city, had been developed based on web service technique to demonstrate proposed feasibility.