Record the decision and its reason.

Separate what was decided from what was discussed. Include the reason for the choice, the important constraint and any question that remains open.

Name one owner for the next step.

An owner is responsible for moving the commitment forward, even when several people contribute. Confirm what that person needs and who can help.

Agree when to revisit it.

Choose a date, milestone or change in circumstances that should bring the decision back into discussion. Keep the original context with it so the review can start from evidence.