Systems that are supposed to manage and associate data volumes, process data streams and interconnect databases are known in their smallest version as APPs on computers and smartphones. Very large systems, for example disaster reaction and control centers and security and awareness centers, are called system-of-systems.
What they all have in common is that independent data sources and data users cooperate with each other via interfaces especially in future cooperation platforms for the development, production, manufacturing and operation of complex SYSTEMS such as ships, aircraft, energy grids and vehicle fleets and of course complex administrational task (e-government).
This sounds simple and actually feasible - Amazon, Meta and Google have been doing it for a long time - but in public sectors, healthcare and industrial applications there are many legal barriers due to data security/intellectual property/export control rules that make a simple setup extremely difficult, or even impossible.
Examples will be shown that reflect the current state of the art, highlight the challenges from a technical, regulatory and socio-political point of view, and give suggestions on how to overcome these challenges. The examples will range from applications in space via governmental security systems to future cooperation platforms (GAIA-X initiative of the EU) and virtual aircraft wharfs.