Every lawyer who must keep a client trust account certifies annually, in the form the supreme court prescribes, that the lawyer or the firm maintains on a current basis the records that professional conduct rule 32:1.15(a) demands. The certification is a personal attestation, so each lawyer needs to know that the firm's records are in fact current before signing.
The graph holds this control, the 0 it maps to, and the evidence behind each claim, over MCP and REST.