At the design stage, the issuer should test whether the product and its key features are likely to suit a definable group of consumers, given what that group wants, can afford and needs, decide how it will be distributed, and consider the choice architecture of the product and the sales context, taking a consumer-centric approach; for continuing products it should establish the target market from the product as it is now.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.