The taxonomy sorts indicators along the path from means to ends: input indicators cover every resource the organization relies on, however obtained, including natural and unpaid resources throughout the supply chain; activity and process indicators cover how resources are used; output indicators cover what activities produce, whether intended or not; organizational outcome indicators cover the things, well-being among them, that can shift as a result of what the governing body decides; and impact indicators cover the positive or negative shift in an outcome that can be traced to the decision, how it is carried out and what follows from it, allowing for other causes and judged against a threshold, with intermediate measuring points between action and impact. Indicators closer to the ends measure what the purpose is for; indicators closer to the means are easier to measure and attribute.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.