An analysis apparatus includes a history analysis part analyzing the trend based on the access log and deriving the latent trait to an access destination, a principal components analysis part analyzing principal components of the frequency distribution of the access, a classification part classifying the correlation of the principal components into plural classes, an event recording part recording the events to induce to the access destination, a first generating part generating a latent trait principal component table; a second generating part generating a class construction ratio table stored the class as the result of classification, a third generating part generating an event classification table stored the class and the contents of the event, and an analysis result recording part recording the latent trait principal component table, the class construction ratio table and the event classification table, as an event feature model of the effect on the execution of the event.