Developing an information system of relatively independent subsystems which are, however, tied together within the organizational framework by communication interfaces. This system of information systems is a network of subsystems located at, and adapted to, areas of need. In such a network, three basic conditions will exist: some of the subsystems will need to interact with other subsystems; some will need to share files with others and even share data processing facilities; and some subsystems will require very little interaction with other subsystems, and for all purposes will be fairly isolated and self-sufficient.
Internet, the electronic information network, is a distributed information system with numerous separate nodes and subsystems, independent linkages and function sharing.
Whereas an integrated information system is monolithic in nature utilizing a central data processing facility with a common data base; a distributed system is modular and employs an aggregation of information systems arranged as a network.