Article 1 sets out the subject matter: harmonised rules ensuring for all businesses, contestable and fair markets in the digital sector across the Union where gatekeepers are present, for the benefit of business users and end users. Article 1(5)-(7) sets the relationship with Union competition law (no derogation; the DMA is without prejudice to Articles 101-102 TFEU) and with national-law gatekeeper provisions.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.