| 摘要 |
PROBLEM TO BE SOLVED: To supply a new information selling/buying form. SOLUTION: When a client 20A is connected to a server 10 and information (called as 'supply information' in the following) becoming the object of selling and buying is registered, an information supplier sets an information cost with respect to non-exclusive information reference, an information cost with respect to exclusive information reference and an information cost with respect to information buying. The information referrer connects a client 20B to the server 10 through the Internet 30, specifies information to be referred to and refers to supply information by designating the non-exclusive reference of information or the exclusive reference of it or the buying of it. Thus, the various information selling/buying forms corresponding to the request of the information referrer can be selected and the new information selling and buying form can be supplied. |
