HCD.4:2 - Problem

The common shortcut is to compress unlike claims into one score and then optimize the score. The resulting decision can trade away an already-reliable safety boundary, conceal unsupported transfer, or treat assisted performance as independent human capability.

The opposite shortcut records many dimensions but never closes a practical question. The practitioner needs a readable comparison that says what to preserve, what gap matters, what uncertainty is decision-changing, and whether to choose, probe, reroute, or stop—without fabricating a programme or authority.