In a system for migrating data between document management applications, if an inheritance setting of an access right to a folder in a source document management application is a first inheritance setting for inheriting an access right to a parent folder, the inheritance setting of the access right is changed to a second inheritance setting for setting an access right exclusively for the folder while the same access right as the access right to the parent folder is set. Then, the folder is migrated to the destination document management application. If a hierarchy including the folder to be migrated exceeds an upper limit on the number of hierarchies in the destination document management application, the folder is stored in a shallower hierarchy in the destination document management application.