Hierarchical software definition structure for intelligent network

An intelligent network which allows software definition of a wider range of objects than has previously been possible is presented. In addition to conventional software definition of customized service specifications, customer environments for this software definition and network functions requiring the services are also software-defined. Software-defining subjects are clearly categorized, according to their skill levels, into system designers, service designers, and customers. Division of the service implementation process, based on this categorization, improves efficiency and flexibility in developing a service system and in realizing customized services.<<ETX>>