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, in situations in which a good outcome for one/some, excludes the possibility of a desired result for the other/others.
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 compromise, the negotiations have failed. When negotiations are at an impasse it is essential that both the parties acknowledge the difficulties, and agree to work towards a solution at a later date. Thanks Wiki..