A spatial information service technique based on WSRF

Aimed at resolving the problems of inability to obtain the resources intermediate state in current web service based Spatial Information Grid(SIG) system,a SIG technology based on the Web Services Resource Framework(WSRF) is proposed.After introducing the WSRF framework and its implementation methods,the workflow and key issues of spatial information service construction based on the WSRF are discussed.A geographic coordinate transformation web service is taken as an example to demonstrate the establishment process of stateful service resources,and SIG service framework based on WSRF is proposed.