Members of the governing body should keep building their understanding of the legal requirements, the context and what the organization does, and, by reviewing governance practice regularly, make sure the governance environment keeps getting better. The governing body should: make sure it holds a mix of skills, experience and knowledge suited to understanding the organization's operations and markets; develop criteria for gauging progress towards the purpose through the strategy, including comparisons with similar or rival organizations, and use them competently; state what quality, quantity and timeliness of measurement it expects when objectives are set; evaluate its own competence, structures and processes, with help from experienced independent professionals, covering effectiveness, efficiency, composition and succession (a maturity model can show progress, and internal audit, where feasible, can give assurance that the design and working of the governance system are as intended); and tell relevant stakeholders how these evaluations were carried out and what they found (6.5.3).
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.