Web service composition mechanism for distributed resources

In many situations,any single service can not fulfill requirement which is complex to some extent,while their composition may be competent instead.So a general algorithm inspired from maze-solving problem is proposed on service composition,which takes the usable services of distributed resources as roads of maze and takes the service composition scheme as a gateway between the entrance and the exit in the maze.This approach can automatically generate a composition plan,based on the functional relationships among different services and the requirement.Simulation experimental results demonstrate the validity of this approach.