To variously analyze and evaluate data using simple operations.

A definition file 4a shows table definition information for designating data on a processing object and output form information for designing a data processing method. A control part 7 obtains data designated by the table definition information from a data file 3a storing plural pieces of data and processes the obtained data, in accordance with the processing method designated by the output form information. Then, a control part 7 controls an output part 2 and outputs the processing result of the data by a prescribed expression form. When there is a changing instruction of the output form information from a user after the output of the processing result, the part 7 changes the output form information, in accordance with the instruction of the user and reprocesses the data, in accordance with the processing method designated by the changed output form information. Then, the part 7 controls the part 2, to reoutput the result of reprocessing by a prescribed expression form.