SYSE.49:4.2 - Construct feasible tasks and consequential variation

Start with the smallest feasible task that exposes the boundary. Vary inputs or conditions that could change the correct continuation: target, starting state, available evidence, timing, applicable edition or actual effect. Keep the task instruction consistent with the provided material, implemented state and permitted operations. For a human practice purpose, use HCD.6’s choice of demonstration, first attempt, correction and changed-condition task; an answer-bearing cue changes what the attempt can show.

Include useful progress and warranted restraint. An already satisfied target may require no mutation; an impossible transition may require an exact stop; delayed evidence may require waiting or an unresolved return. Do not reward calling a tool merely because one is available.

Broaden variation where the candidate could exploit an incidental constant, wording or ordering. Select difficulty from the receiving question rather than maximizing difficulty for its own sake. Keep final evaluation tasks outside this adaptation, including their expected results and near-duplicates.