HCD.5:10 - Rationale

A development activity is useful only through the contribution it changes for the receiving later-Work use. Technique names and average effects compress away the holder, task, starting action, support, and evidence boundary that determine local fit.

Mechanism comparison keeps the proposal generative without claiming causality in advance. The observation of target change makes failure informative: it can challenge the selected Method before a poor later result is blamed on the person. A small Method set preserves complementarity while preventing a catalogue from masquerading as a choice.