In the context of the national ID system, the "number" system (sometimes mistakenly called the common number system), there is a system infrastructure called the "information sharing infrastructure." The orange box in the diagram below (from the interim report of the Cabinet Secretariat's Information Sharing Infrastructure Technology Working Group) is this. It seems that this part is the "information sharing infrastructure" that has been...
Further display Is the information sharing infrastructure of the "number" system complex?