PURPOSE: A resource based on network and relaying system for mediating knowledge information are provided to implement direct or indirect communication of a participant through the optimization of mediation. CONSTITUTION: A dedicated support information database(1001) is based on registered information of an intermediate and index information of external database(103). A preliminary proposer database(1003) registers a preliminary proposer. A preliminary client database(1002) classifies a preliminary client by a business field. Proposer database(1004) registers a proposer.
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