Services manage the orderly flow of data and enable support applications.
A pacing factor for the development of an advanced NII is the interoperability and scalability of the services that are implemented within the infrastructure. Many experts believe that the most critical and difficult to realize aspect of the NII is the development of a services infrastructure. Without a coherent services infrastructure, access to the NII's advanced capabilities may be extraordinarily difficult and may not be affordable by the average citizen. An ongoing process of research, development, experimentation and public debate is required. This should be combined with commercial development and product deployment to evolve a services architectural framework and its implementation.