Good decisions rest on analysing data and information (ISO 9000:2015 clause 2.3.6). Records should be kept of how the project is progressing and performing, a status report being one example. Performance and progress evaluations (clause 5.3) should be done periodically to establish where the project stands, and the project organization should analyse what they produce in order to take sound decisions about the project and to revise the project management plan.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.