Method for managing buyer transactions and settlements using communication network between computers, and method for relaying information following buyer consumption trends to the buyer

Abstract

It is an object of the present invention to enable a buyer to collectively manage information related to a variety of commercial transactions performed by the buyer as well as to the settlements for these transactions. The calendar serversupplies a calendar screen to a buyer systemthat is used by the buyer. This calendar screen has electronic invoices addressed to the buyer, which are issued by the supplier system, and electronic deposit/withdrawal detailed statement of the buyer's deposit account, which are issued by a banking system, pasted in the spaces for the relevant dates. When the buyerselects an arbitrary invoice on this calendar screen and inputs his or her approval of this invoice, an account transfer telegraphic message for payment of this invoice is automatically sent to the banking system. The calendar servermanages the status of each invoice ('opened', 'payment request in progress', “paid”), and notifies the supplier systemand banking systemof this invoice status. The calendar serveralso supplements news such as advertisements which are sent by the supplier systemand banking system, and so forth, selects news following the buyer's consumption trends, and pastes this news in the spaces on the calendar screen which pertain to dates that slightly precede dates on which buyer consumption other forms without departing from the spirit of the present invention.