Three different kinds of negotiation applications achieved with GeNCA

In this article, we present GeNCA: our Generic Negotiation of Contracts API and three different negotiation applications achieved with it. The first one is an auction application that runs on a multi-agent platform. The second one is an application for choosing a restaurant for a dinner between friends. This application uses e-mail communications. The third application is a negotiation game inspired of the Civilization game of Avalon Hill Game Company. This game is played between centralised agents that speak each after another in a round-robin way. We show in this article that GeNCA is well suited for building these negotiation applications. As a matter of fact, different communication ways are provided with GeNCA, and the negotiation management and protocol are adapted to these different negotiation applications. Only strategies have to be conceived by the users, as they are specific to the application.