The increase of the reaction speed within economic organisms may be accomplished if the entire informational subsystem becomes informational. Up to now, the automatisation of some departments from firms has offered the expected results, accelerating their activity. The necessity of integrating these already- informational departments into a common system has become acute in time and the concern of forming these integrated informational systems has been accentuated. The making of these desiderata has become concrete with the help of some integrating software for the activity of the firm, called ERP (Enterprise Resources Planning).