Build enough understanding of the system for all subsequent RAMS activities: analyse its scope, context and purpose, its environment (physical, interfaces, legislative and economic), previous RAMS requirements and past performance of similar systems, the railway duty holders' current RAMS policy and targets, and safety law; decide how far the RAMS management requirements reach for the tasks that follow; document the results with assumptions and justifications.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.