（1） Technology for developing network management and control platform software

This technology is used to develop SDN platform software that enables the construction of networks while meeting service requirements and enabling fast provision of services.

Specifically, it integrates a wide area network by ensuring common handling of information for controlling diverse networks, such as optical, wireless and packet communications (network configuration information, communications status information, etc.), and develops platforms to flexibly and promptly perform control.

（2） Technology for developing software for network design, construction and operation management

This technology is used to develop software for network design, construction and operation management that runs on the platform developed in item 1.

Specifically, it develops design software required for applying SDN to a wide area network (verification of designed networks), construction software (interconnection with existing networks, transition from existing networks to SDN), and operation management software (identifying faults between layers and responding to them faster, controlling service quality).

（3） Technology for developing virtualization compatible network devices

This is used to develop SDN network devices that can be controlled by points 1 and 2 outlined above.

Specifically, it develops the interfaces and driver functions that enable use of low-cost, high-performance resources through all layers, optimization of service construction costs, and control of existing optical and wireless network devices, as well as software communications devices that can freely change configurations and functions.