No abstract

E-procurement systems allow governments to efficiently management their contracts by improving interactions with suppliers, and by increasing transparency. Governments generally choose their suppliers based on the minimum price. However, other criteria than price may be considered to help governments choose the best suppliers. This paper proposes a formal reputation model that is intended to determine the winners of an eprocurement process. The proposed model combines three elements: (1) the direct reputation of the supplier, (2) the indirect reputation of the supplier, and (3) the difference in beliefs between the government and the supplier. Using a multi-agent approach, the proposed model compares between situations where reputation is integrated along price for selecting suppliers and when it is not. Results show that the proposed reputation model may lead to lower costs.

No abstract

Nowadays, Supply Chain contributes in the evolution of the companies' management. It put forward new modes of interactive and fluid cooperation among various economical actors. Indeed, Supply Chain brings the companies closer to their partners and increases their performances and market shares by introducing computer technologies in these activities. This paper proposes a model of negotiation among a Supply Chain in a case of an invitation for tenders. This model is based on the multi-agent technology which introduces a set of real and virtual agents in the processes studied. It enables the automation of the negotiation process in the company while making it intelligent and creative.