1. A manufacturing line monitoring system for monitoring a manufacturing line formed of a plurality of manufacturing apparatuses comprising: collecting means for collecting information from each of said manufacturing apparatuses; first storage means for storing said collected information; first preparing means for preparing first information relating to results of manufacturing by each of said manufacturing apparatuses based on said stored information; second preparing means for preparing second information relating to variations in said results based on said first information; first output means for outputting said first information and said second information in a manner linking said first information and said second information with each other; and first transferring means for transferring alarm information based on one of said first information and said second information.