The division of these tasks is relatively stable rather than absolute, some of them are divided into eight links, and some are divided into two parts: basic work and utilization work. Because modern file management has become a complex system, there are also methods to divide it according to multiple levels. The first level is divided into two subsystems: archival entity management and archival information development, and each subsystem is divided into several subsystems.
Archives entity management is divided into collection, sorting, identification, storage, statistics and other work links; The development of archives informatization is divided into two parts: information processing and information output. Information processing includes cataloging, editing literature compilation and compiling reference materials, while information output includes providing reading, copying, consulting, communication, borrowing, publishing, exhibition and other service activities.