Article 3 requires that connected products and related services be designed and manufactured in such a way that product data and related service data, including the relevant metadata necessary to interpret and use them, are, by default, easily, securely, free of charge, in a comprehensive, structured, commonly used and machine-readable format, and, where relevant and technically feasible, directly accessible to the user. Article 3(2) sets the pre-contractual information that the seller / rentor / lessor of a connected product must provide to the user about the data the product is capable of generating.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.