Data processing device and data processing method

Abstract

A data processing device comprises a division unit that divides a target period into a plurality of operating periods according to an operating condition; an identification unit that identifies a standard condition for each operating period; a calculation unit that divides each operating period into a plurality of constant performance periods in each of which the performance of a target device is considered to be constant, narrows down time series data for each constant performance period on the basis of the standard condition, and calculates a certain representative value on the basis of the time series data extracted through the narrowing down; and a correction unit that sets an overlapping period containing a boundary between two adjacent operating periods, narrows down, on the basis of each standard condition identified for each of the two operating periods, time series data in the overlapping period for each standard condition.