To support correcting a document in which a task process is described by specifying the range of a task process affected by the organization change of an enterprise when the organization structure is changed.

An organization information change reflection system 200 equipped with a task process information database 210 in which organization information and a task process are stored in association with each other is configured to specify an organization affected by the change of an organization designated by a user, and to specify a task process associated with the organization as an object to be changed. Thus, it is possible to correct the task process to be actually changed by the user from among the task processes, and to reflect the content of the corrected task process in the document in which the task process is described.