Enterprises — what composes?

The registry maps function, not marketing: a working deployment composes a signal provider (environment), a decision system, an enforcement point, and evidence infrastructure. The capability matrix shows who claims which role, on the ladder — note that CONFORMANCE_TESTED is currently unreachable, so "composes on paper" is the strongest available claim. The complementarity view ranks pairs that could actually compose (provides→consumes), not pairs that sound alike. Fictional example records demonstrate the shape; do not procure them.