Systems Research And Application, Based On The Cost Of Procurement Of Multi-agent Coordination And Communication Mechanisms

In the manufacture enterprise, the cost controlled is always a effective way to realizes the enterprise of the most profits, but there is serious insufficient in the aspect of decision support of current ERP, which has restricted greatly enterprise's level of cost decision.Moreover the question of enterprise cost analysis decision-making is universality, numerous and diverse and unpredictability, the data is distributed, needs to cooperate mutually to solve the common problem, this causes the construction of enterprise decision support system to become extremely complex.The Agent technology, especially the Multi-Agent technology has provided the new computation method for the solution of complex, dynamic and distributional intelligent application question,But the researches for the Agent technology, specially the MAS cooperation and interaction are not mature and not perfect still, there are still many theories need to be consummated, many questions urgently await to be solved.In the foundation of analyzing thoroughly the ERP purchase cost analysis theory and the cost analysis method, This paper introduced the Mutil-Agent theory to cost management domain, and proposed a method which constructs the purchase cost analysis model using the Agent technology and the contract net method, which decomposes the big and complex problem to many small and the simple questions, enabled the question to be simplify, enhanced the accuracy and real-time of decision-making, enhanced the system's flexibility also.The key point and the difficulty of the studies are the cooperation and interaction mechanism of Agent. Based on the analysis of shortcoming and limitation in traditional Contract-Net Protocol (CNP)—a main cooperation mechanism of MAS, unified the Contract-Net Protocol and the auction theory, agents gain task through independent competition. The Contract-Net Protocol based on Auction (CNPA) supported the capability of each agent changed dynamically, reduced the costs of communication and overtaken the difficult of knowledge acquired.Finally, taking the enterprise purchases cost analysis system as the foundation to study in the MAS architecture and the cooperation and the interactive mechanism between the Multi-Agent, then discussed the construction method of the purchase cost analysis system based on Agent and contract-net, and through the practical application in a drugs manufacture enterprise's purchase cost analysis system to confirmed the feasibility of model and theory.