Web Services Composition by I/O Data Structure Correspondences

The Web service composition from existing Web services to obtain the more suitable service for application still is a highly complex task. We propose a method to combine existing Web services with list of results as their output into more functional Web service with nested list of results, which seems to be synthesis of the existing Web service results, as its output. The method requires no workflow description, like flowchart, but only data correspondences among data structures of existing and combined Web services, as composition specification.