A system in which researchers can freely and effectively use worldwide bioinformatics analysis programs available on the Internet is provided. When a bioinformatics analysis program available on the Internet is used by a user computer, a broker program is used. The broker program has a function of absorbing differences in input/output format between analysis programs, and each analysis program is provided with the broker program. A broker program-providing server stores various broker programs provided by users and makes them available to the public. When the user uses bioinformatics analysis programs available on the Internet, the user can use broker programs that are made available by the broker program-providing server and that are created by other users.