Patent Document ID: 20070130357
Application ID: 11359494
Patent Flag: 0

Claim One:
1. An unexpected demand detection system for detecting an unexpected demand for IT resources that can be increased/decreased in a computer system including the IT resources, comprising: a demand model recording part that records a demand model representing a time-based transition in a predetermined time period of an amount of the IT resources required in the computer system by using data indicating a time in the predetermined time period and data indicating an amount of the IT resources required at the time; an unexpected demand model recording part that records an unexpected demand model representing a time-based transition different from the time-based transition of the amount of the IT resources represented by the demand model by using data indicating a time in the predetermined time period and data indicating an amount of the IT resources required at the time; and a judging part that performs a comparison among observation data indicating an actual demand for the IT resources observed in the predetermined time period, the amount of the IT resources represented by the demand model, and the amount of the IT resources represented by the unexpected demand model thereby to judge whether an unexpected demand represented by the unexpected demand model occurs in the predetermined time period.