Abstract
The negotiating ability may be trained empirically. It is difficult for a person having no experiences in a practical situation to cleverly negotiate. In order to improve a negotiation skill which a project manager has to develop, we construct a model for negotiating processes and propose to apply decision making method which has consideration for human behavioral characteristics in negotiating tactics. The results of our role play practice in which students participated show that the negotiation skills is treated as more important than consciousness for role of each other.
