An architecture description must include one or more views, and each view must address stakeholder concerns and be built according to a viewpoint. A viewpoint must frame one or more concerns and must define how the view is built, read and analyzed, including the notation, model kinds, design rules, languages, methods and analysis techniques used; communication through the viewpoint may be two-way, with stakeholder critique or consent. The elements and relationships shown in a view must be selected for relevance to the stakeholder concerns.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.