| Section3 System architecture and progress standardization |
Outcome of the system architecture development |
- Detailed definition of user services
In order to clarify the information and functions necessary for ITS services, 21 user services in 9 development areas were divided into 56 specific user services, and then into 172 sepcific user sub-services, thus comprising a whole system of user services. Each sub-service was defined in detail so that particular services provided will be clear.
The user service system diagram is shown below.
