Answer:
1)The first stage requires the parties to prepare appropriately for face-to-face negotiation.
2)The second stage involves face-to-face problem solving, often assisted by a facilitator or a mediator.
Step-by-step explanation:
Consensus building (also called collaborative problem solving or collaboration) is essentially mediation of a conflict which involves many parties. Usually, the conflict also involves multiple, complex issues. ... Consensus building is usually carried out by a mediator or a facilitator.