It is very advantageous if, besides the accounting system,
the basic activity of the enterprise is supported by software
modules which can be linked and are able to co-operate
efficiently. In a complex system created like this it is important
for the software to support the main activity, the different
business processes in details, but in an integrated way. To
realize this, it is essential to have a common database reflecting
the whole activity of the enterprise, up-to-date data, and reliable
information. The target of the complex information system is to
support the planning and strategic decisions of the management
(in which the management information system has an important
role) and to support the inner mechanism of the enterprise and
the interenterprise processes.