This paper addrcsse.t; the problem of flexible procurement of multiple services with multiple non-functional characteristics, i.e., quality of service attributes. We consider the one-to-many negotiation approach as a flexible method for procuring multiple services by a buyer agent. We address the problem of coordinating multiple concurrent negotiations and propose a novel dynamic negotiation strategy that considers the behaviors of the opponents of the current negotiation encounter in managing the local reservation values of the common negotiation issues (attributes) of different services. Most previous works consider the problem of negotiation over a single issue. We investigate a more complex situation where a buyer agent negotiates over multiple services given that each service has multiple negotiation issues. The experimental results show an evidence for the effectiveness and robustness of our dynamic negotiation strategy in various negotiation environments.

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This paper deals with a synthesis of theoretical and conceptual work on a MAS-model of the MIT Beer Game, known from the paper where it was first formulated [1], with the implementation of a general simulation framework, called Absimulation, given in Raffel's work [2]. The first goal of this study was to make the authors and the intended audience acquainted with issues that arise within processes such as MAS modeling and peculiarities of MAS implementation techniques. Though comparatively much work is associated here with the concrete case of a model of the particular supply chain management game, it was attempted to discuss much more general MAS-related problems, whenever the given implementation offered the opportunity for such a discussion. Also finding the limitations of the adopted solution has to serve future more complex work.

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