PSD.1:4.3 - Bound the subject, horizon, receiving Work, and consequence

State the holder or subject at the grain whose alternatives or consequences can change. Add the relevant configuration, place, population, operating condition, and interval only when they change the answer. State the receiving decision or Work and the horizon over which the return is expected to remain useful.

Name at least one consequence of getting the boundary wrong. This is a recognition cue, not a complete consequence analysis. When affected Systems, missing participants, duties, interests, or representation can change the engagement, continue with PSD.2. When several problem formulations imply materially different actions, continue with PSD.3. When included and excluded concerns need a deliberate scope decision, continue with PSD.4.