To automatically generate a system test specification fit for an actual situation of business for performing a test about processing important on the business.

An update information storage means 11 stores update information comprising; processing identification information of data update processing; a data set name of a data set updated by the data update processing; and update time. A function test information storage part 12 stores function test information showing a procedure of a function test checking whether each module materializing a business step composing a business flow satisfies requirement or not. A business flow extraction means 13 generates flow information wherein the data set name of the data set updated by the data update processing are arranged in order of early update time. A system test information generation means 14 generates system test information showing arrangement order of the function test arranged correspondingly to arrangement order of the business step composing the business flow in each business flow shown in the flow information from the function test information.