CB.3:12 - Relations

• Uses CB.1 and CB.2: a worthwhile offer and an obtainable first exchange. A failed central offer returns to CB.1.
• Supplies CB.4 and CB.5: understood participation conditions and supported contributors; an interaction or contribution can expose a new entry difficulty.
• Uses OCE.10: inquiry and response for a consequential participation gap.
• Uses OCE.6: an actual assignment or enabling relation required by the responsibility.
• Uses HCD.3 and HCD.5/6: qualified diagnosis and preparation when learning a contribution is needed.