Top management looks at the product realization processes and the support processes to judge and improve how effective and efficient they are, and what these process reviews find is fed into management review as an input under 9.3.2.1. As revised: SI 12 (June 2018): top management reviews how effective and efficient the QMS and support processes are; not every process has to carry an efficiency measure, as the organization decides which ones do; and management reviews whether problem solving is effective.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.