Abstract: The failure isolation method includes: a first step of performing a predetermined action for the monitoring target, collecting a failure event which is a result of the action, applying the failure event to a failure cause analysis rule, and narrowing down the root cause events together with certainty factors; a second step of determining whether the root cause event and the certainty factor narrowed down in the first step satisfy a predetermined requirement and whether the narrowing-down has been completed; and a third step of, when it is determined in the second step that the narrowing-down has not been completed, performing a predetermined additional action for the monitoring target, collecting an additional failure event which is a result of the additional action, applying the additional failure event to the failure cause analysis rule, and narrowing down the root cause events together with the certainty factors.

Abstract: The failure isolation method includes: a first step of performing a predetermined action for the monitoring target, collecting a failure event which is a result of the action, applying the failure event to a failure cause analysis rule, and narrowing down the root cause events together with certainty factors; a second step of determining whether the root cause event and the certainty factor narrowed down in the first step satisfy a predetermined requirement and whether the narrowing-down has been completed; and a third step of, when it is determined in the second step that the narrowing-down has not been completed, performing a predetermined additional action for the monitoring target, collecting an additional failure event which is a result of the additional action, applying the additional failure event to the failure cause analysis rule, and narrowing down the root cause events together with the certainty factors.

Abstract: An electronic discussion system including discussion terminals for writing and managing opinion information and clients for accessing the discussion terminals through a network.

Abstract: An electronic discussion system of the client/server structure for an electronic exchange of messages which are presented by a plurality of users and shown on a display of a client computer, wherein the servers comprise at least one storage server for holding detailed contents of respective pieces of opinion information, and at least one discussion server for holding opinion indexes showing the storage locations of opinion contents of respective pieces of opinion information, wherein the clients comprise an opinion writing client for transferring and writing the opinion index created from a newly presented piece of opinion information and the opinion content into the discussion server and the storage server, and a reading client for referring to opinion indexes and opinion contents recorded and managed in the discussion server and the storage server.