GIS Application Framework Based on SOA

Since it's difficult to combine geographic information system(GIS) service and application system in multi-level flexibly and to build GIS Web application system quickly with the traditional framework and development method,we propose a new GIS application framework based service-oriented architecture(SOA) by introducing workflow into spatial information process,as well as simplifying user's development work through a service-oriented business model.On this basis,we have implemented a GIS application framework composed of the following three parts:system framework,workflow engine and forms.It has been proved in practice that SOA can offer various GIS services with different granularities and different function packages based on GIS workflow,as well as build business system quickly with form based on SOA.This model offers a new method to GIS development.