Information providing method and system using information modification rules

摘要

An information providing method and system is provided, in which information suitable for a user can be provided without any change for information stored in information providing servers. The method comprises the steps of: preparing information modification rules in which plural classes indicating characteristics of users are determined; regarding at least one information item, identification information with respect to the information item and a server which stores the information item is assigned to one of the classes; a more suitable information item is determined as a modified information item with respect to the assigned information item, the modified information item being used when the assigned information item is chosen by a user who belongs to the relevant class; and identification information with respect to the modified information item and a server which stores the modified information item are registered; providing an information modifying/providing server which performs information provision control with reference to the modification rules; and in the information modifying/providing server, when a first server provides a first information item to an information terminal and the information terminal request a second information item relating to the first information item, judging whether or not the modified information item with respect to the second information item exists in the information modification rules; if the modified information item does not exist, sending an information request to a server which stores the second information item; if the modified information item exists, sending an information request to a server which stores the modified information item; and providing the sent-back information item to the information terminal.