While most e-commerce research focuses on one market based problems, less work has been done on multimarket aggregation. Nowadays it is important to address the multimarket package e-procurement problem if we want to acquire a combination of goods and services from different suppliers and service providers. To achieve this, one should address the issues pertaining to identifying of a company's needs, discovering potential partners and suppliers, gathering distributed information and conducting combined negotiations, creating a seamless of information flow with different heterogeneous markets, suppliers, and partners, and finally concluding transactions. Several commercial e-procurement applications already automate some aspects of the procurement processes, helping decision makers and employees complete their purchasing activity. But none take into account the key aspects of combining goods and services into one aggregated package. Agent-based systems are well equipped to address the challenges of multimarket package e-procurement. Indeed, goal driven autonomous agents aim to satisfy user requirements and preferences while being flexible enough to deal with the diversity of semantics amongst markets, suppliers, service providers, partners and individual sellers. A distributed common shared space, called infospace, comprised of the negotiation exchanges and states, allows for agent coordination, market aggregation, and packages construction. This paper presents some issues and challenges faced in multimarket package e-procurement, and puts forward an agent-based approach to deal with them. La plupart des recherches sur le commerce electronique s'interessent aux problemes relies a des marches uniques. Moins de travaux ont ete realises autour de l'approvisionnement multimarche. Le probleme d'approvisionnement electronique (e-procurement) multimarche d'un paquet consiste en l'acquisition d'une combinaison d'objets a partir de differents fournisseurs de biens et services. Afin d'y parvenir, nous devons identifier les besoins de l'entreprise, decouvrir les fournisseurs et partenaires potentiels, extraire de l'information distribuee et eventuellement gerer des negociations combinees, gerer le flux d'information circulant entre des marches heterogenes, vendeurs et partenaires, et finalement conclure des transactions. Il existe un certain nombre d'applications commerciales d'approvisionnement electronique qui automatisent quelques aspects du processus d'approvisionnement pour les entreprises, en aidant les preneurs de decisions et les employes dans leurs activites d'achats et d'approvisionnement. Mais aucune de ces applications ne tient en compte l'aspect de combinaison d'objets en un paquet agrege. Les systemes a base d'agents representent une approche adequate pour faire face aux problematiques posees de l'approvisionnement electronique multimarche d'un paquet. En effet, les agents autonomes essayent de satisfaire les besoins et preferences de l'utilisateur en etant assez flexibles pour gerer la diversite semantique entre marches, vendeurs, et fournisseurs de services. Un espace commun et partage, appele InfoSpace, contenant les echanges de donnees et les etats des negociations, assure la coordination des agents, l'agregation des marches et la construction des paquets. Ce papier presente quelques problematiques et defis relies a l'approvisionnement electronique multimarche de paquets, et expose une approche basee sur les agents pour y faire face.
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