() - , (, , ).
() - : , (), , , .
- , . , (process control systems - PCS), , . , . , , , .
(information reporting systems - IRS) - . , . , , . , , . , - .
() - (decision support systems - DSS) - . - , . , , . , . . DSS , , . , . , " ?" . , , DSS, , . DSS , . , . , DSS , . - () - , . , , .
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(executive information systems - EIS) - , . , , , , , . - , , . , . , , . , EIS . , .