Creation of Spatial Information Service Semantic Topology Description Model

Based on analyzing the service semantic description model, the paper concludes it dynamic that the relationship between services constructed presently. So when executing a static service combination, it needs a dynamic matching process; and with a dynamic service combination, it will form a complicated performing mode of dynamic service re-matching. In connection with/Aiming at this defect, a new spatial information service semantic description model is proposed in this paper, and the static topology can be established on this model, with purpose of improving the speed and performing efficiency of the service combination and matching.