The organization has to keep improving the suitability, adequacy and effectiveness of the records system. The 2019 edition simplified the earlier list of inputs and removed the requirement to prioritise improvement actions by the risk assessment, but the duty remains: improvement has to be a deliberate activity with a result, not a statement in the policy. The evidence is a change that made the system fit its purpose better, work more reliably or produce more useful evidence.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.