Information commerce method and system reflecting buyer's estimate via a communications network and a medium for recording that method

摘要

PURPOSE: A method and system for information transaction in type of purchaser grading using communications network and record media for storing the method is provided so that information transaction is done at a fair and proper price by readjusting a price of information which is sold through communications network by grading of purchasers. CONSTITUTION: In a method for information transaction of dealing in information by selecting a specific cost through communications network, a method for information transaction in type of purchaser grading includes two steps. A first step is to receive propriety of the information price from purchasers who purchase the information as grade. A second step is to determine a new price by applying the grade to the information cost and to sell it.