Protects the information created, read, edited, stored or sent on any kind of client, regardless of the operating system used. In Edition 2023 the Baustein carries 45 requirement numbers, 35 of them live: 5 Basis requirements (B, MUSS, to be fulfilled first and without exception), 16 Standard requirements (S, SOLLTE) and 14 requirements for elevated protection needs (H), with 10 numbers withdrawn (ENTFALLEN) and kept for stable numbering.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.2.1.A<n>.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.