SYSE.25:4.4 - Select the smallest action that can change the decision

Retain current provision when the comparison supports it. Choose a bounded repair when evidence already distinguishes it and its conditions can be met. Choose a probe when its attainable result could change the choice enough to justify its cost and delay; use C.11.DUA when that comparison is unresolved. Specify what the probe will hold comparable, what it observes, and how its possible outcomes change the next action.

Do not conceal a tie with an arbitrary score. A useful probe can be a representative attempt, a comparison of two repaired interactions, or an exercise of one costly failure. It does not need to be a deployment to every user. Keep the chosen next result and its permission with the actual decision holder.

Stop with a missing-premise return when neither a justified action nor a worthwhile permitted probe is available. Continue independent work whose premises are already supplied.