Protects the information processed, offered or transmitted on servers, and the services connected with them. In Edition 2023 the Baustein carries 39 requirement numbers, 28 of them live: 6 Basis requirements (B, MUSS, to be fulfilled first and without exception), 14 Standard requirements (S, SOLLTE) and 8 requirements for elevated protection needs (H), with 11 numbers withdrawn (ENTFALLEN) and kept for stable numbering. It is applied to an IT system in modelling order R2. The requirements property on this node lists every requirement by number, title, level and responsible role, so a requirement is cited as SYS.1.1.A<n>.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.