The customer's needs and expectations for the product or service and for processes, both those stated and those generally implied, and any applicable legal and regulatory requirements, should be worked out and defined, then turned into documented requirements that are agreed by both sides where the customer requires it. The remaining stakeholders should also be named, with their needs analysed, then turned into documented requirements agreed with the customer where relevant.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.