Leave the Emotions Out of It

REACHING A COMPROMISE
Compromise is an essential element in any interaction. In business specifically, compromise is critical to ensuring the needs of all parties are met and that healthy and prosperous relationships are fostered and maintained.
Leave the Emotions Out of It
In some business situations, emotions can be helpful. Compromising is not one of these situations. When either side shows emotion, it can convey weakness, which the other party will use to their advantage. A compromise is when both parties come to a mutual agreement that is beneficial to everyone. To leave emotions out of the process, you must remain solution oriented. Address facts and problems, and work together to solve them. If you start to show anger towards the other party, it becomes personal. The desire to make a compromise will be squelched. Keep it rational, and ignore your personal differences.
Be Honest
Being honest with yourself and others is one of the most effective ways to reach a compromise. If you establish your goals up front, there’s no need to beat around the bush and waste time. Communicate with the other parties why these goals are important, and they will be more likely to understand and work with you. Likewise, be honest with yourself and your own responses. Identify the traits within yourself that may negatively affect your ability to compromise, and manage them before they become a problem.
Explore All Your Options
Prior to negotiating, come up with all possible outcomes and their alternatives. Carefully weigh the pros and cons of each for both sides. Addressing multiple solutions to a problem demonstrates your willingness to meet in the middle. If you communicate effectively and intelligently, it shows the other side that compromise works for everyone. You will end the negotiation on a positive note and leave them with a feeling that they’ve “won” something, too. 
Above All, Stay Positive
In all situations, a positive attitude greatly affects the outcome. Staying positive reflects confidence and a genuine regard for others. Others will be much more willing to compromise their needs and meet yours if you maintain a persistently positive attitude throughout the meeting. Think about it: why are successful salespeople good at their jobs? They’re warm and welcoming, and they make customers feel like their needs matter. It’s much easier to reach a compromise with a pleasant and genuine person, and it allows both sides to feel like they’ve come out on top.
To compromise is to make a deal between different parties where each party gives up part of their demand. In arguments, compromise is a concept of finding agreement through communication, through a mutual acceptance of terms—often involving variations from an original goal or desires. Defining and finding the best possible compromise is an important problem in fields like game theory and the voting system.
In international politics, the compromises most often discussed are usually regarded as nefarious deals with dictators, such as Neville Chamberlain's appeasement of Adolf Hitler. Margalit calls these "rotten compromises."^[1] In democratic politics, great challenges of contemporary democracy and has become more difficult in the era of the permanent campaign, as Gutmann and Thompson show.^[2] The problem of political compromise in general is an important subject in political ethics.

Chamberlain (left) and Hitler, 1938.
In human relationships, "compromise" is frequently said to be an agreement with which no party is happy because the parties involved often feel that they either gave away too much or that they received too little.^[3] In the negative connotation, compromise may be referred to as capitulation, referring to a "surrender" of objectives, principles, or material, in the process of negotiating an agreement. Extremism is often considered as antonym to compromise, which, depending on context, may be associated with concepts of balance and tolerance.
Research has indicated that suboptimal compromises are often the result of negotiators failing to realize when they have interests that are completely compatible with those of the other party and settle for suboptimal agreements. Mutually better outcomes can often be found by careful investigation of both parties' interests, especially if done early in negotiations. ^[4]
The compromise solution of a multicriteria decision making or multi-criteria decision analysis problem that is the closest to the ideal could be determined by the VIKOR method, which provides a maximum utility of the majority, and a minimum individual regret of the opponent.^[5]