Data processor and data processing method

摘要

To provide a data processing device with which it is possible to infer the cause of a change of data relation.SOLUTION: A data processing device is constituted to comprise: a past relation specification unit for coupling past sensor data and business data on the basis of item information pertaining to data coupling, and specifying a data relation between items on the basis of the items of past sensor data and the items of business data; a real-time relation specification unit for specifying a data relation between the items of real-time sensor data; a similarity calculation unit for calculating the similarity of the data relation specified by the past relation specification unit to the data relation specified by the real-time relation specification unit; and an output control unit for outputting the data relation specified by the past relation specification unit and the data relation specified by the real-time relation specification unit the similarity of which calculated by the similarity calculation unit exceeds a threshold, in association by the items of past sensor data and the items of real-time sensor data.SELECTED DRAWING: Figure 1