Negotiation is a dialogue between two or more people or parties intended to reach a beneficial outcome. This beneficial outcome can be for all of the parties involved, or just for one or some of them. It is aimed to resolve points of difference, to gain advantage for an individual or collective, or to craft outcomes to satisfy various interests. It is often conducted by putting forward a position and making small concessions to achieve an agreement. The degree to which the negotiating parties trust each other to implement the negotiated solution is a major factor in determining whether negotiations are successful. Negotiation is not a zero-sum game; if there is no cooperation, the negotiation will fail.