Patent Document ID: 20060218278
Application ID: 11191989
Patent Status: 0

Claim One:
1. A demand forecasting system, comprising: a classification unit that classifies a plurality of users who use IT resources in a data center into a plurality of user's behavior classes based on behavior patterns of the users to use the IT resources; an event characteristics model generation unit that generates an event characteristics model based on a record of usage by the users in the past, the event characteristics model representing a variation over time in a usage state of the IT resources caused by a past event for each user's behavior class and the number of the users moving among the user's behavior classes caused by the event; an event influence calculation unit that calculates a predicted value of the variation over time in a usage state of the IT resources for each user's behavior class and a predicted value of the number of the users moving among the user's behavior classes that will be caused by an event scheduled to be held in the future using the event characteristics model; and a demand forecasting unit that calculates a variation in load on the IT resources based on the predicted values of the variation over time and the number of the users moving that are calculated by the event influence calculation unit.