Security measures for essential systems must not reduce their availability or cause loss of safety, control, monitoring or other functions with health, safety or environmental consequences, and the system must be designed so the ship can keep up mission-critical operations while keeping the data needed for safety confidential, intact and available for the safety of the vessel, its systems, people and cargo.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.