To meet Level 2, the description must show conceptual conformance, its AV-2 glossary must follow the style manual for entries and for producing the glossary, and its data must be described with DM2 types, relationships and properties. Any added concepts, relationships or properties must be introduced as subtypes of DM2 ones.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.