Protects the web server and the information it provides or processes. In Edition 2023 the Baustein carries 20 requirement numbers, 17 of them live: 7 Basis requirements (B, MUSS, to be fulfilled first and without exception), 8 Standard requirements (S, SOLLTE) and 2 requirements for elevated protection needs (H), with 3 numbers withdrawn (ENTFALLEN) and kept for stable numbering. It is applied to an application 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 APP.3.2.A<n>.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.