Definition: Targets A and B

Let $\Psi$ be a declared finite target channel and

an implementation on the same comparison interfaces.

Target A requires a support or signalling statement for $\Phi$, together with a separate accuracy comparison to $\Psi$.

Target B additionally realizes every preparation, gate, communication, clock operation, controller read, record, reset, and decoder by the admitted local and causal primitives on the supplied spacetime.