Research on dynamic scheduling based on the degree of credit

Direct to Agent´s faithless action in a knowledge-based dynamic system, this paper presents a credit-based dynamic scheduling system, using the Contract Net Protocol as its coordination mechanism, and constructs the frame of multi-agent-based dynamic scheduling. The system acquires standardized attributes knowledge from bidding documents and knowledge of scheduling rules from experience of scheduling experts, and the common scheduling decision table is set up. Furthermore Scheduling Agent will invite bids to Resource Agent for each task in Task Set in order to generate a scheme. Search Agent is to seek some Resource agents which have enough credit over a fixed value and match with the resource type of that task requirement, and the bid-set is formed. Scheduling Agent should evaluate all the bids and give the winner. According to the feedback index which the task completed, the system recalculates the degree of satisfaction and gives the winner´s credit degree. Then the process arithmetic is described. Finally the analysis and design of the system are completed.