Worldwide standardization is handled by the International Organization for Standardization (ISO), the International Electrotechnical Commission (IEC) and the International Telegraph and Telephone Advisory Committee, the International Telecommunication Union (ITU), all in Geneva.
The national standards institutes from 118 countries work together in the ISO, which was founded back in 1946. The aim of ISO is to facilitate the international exchange of goods and services by means of globally uniform standards and to activate cooperation in the scientific, technical and economic fields across borders.
The results of ISO and IEC work are published as international standards. The work results of these two bodies are a prerequisite for free world trade and an important means of technology transfer to third world countries. In the field of data communication, ISO has developed, among other things, the well-known OSI reference model. The German Institute for Standardization e.V. (DIN) is a member of ISO.