Page 360 - PM Integrated Workbook 2018-19
P. 360

Chapter 14





                           Types of information systems




               There are three levels of management – strategic, tactical and operational. Each
               creates different types of strategy within the organisation and therefore needs
               different types of information:

                                          TIME      LEVEL OF     SOURCE    DEGREE OF  FREQUENCY
                                        HORIZON       DETAIL                CERTAINTY


                   STRATEGIC             LONG-    AGGREGATED/     MAINLY  UNCERTAIN INFREQUENT
                                         TERM     SUMMARISED     EXTERNAL

                    TACTICAL

                OPERATIONAL
                                       IMMEDIATE     HIGHLY      INTERNAL    CERTAIN     FREQUENT
                                                    DETAILED


                    The strategic level of management

                     –     requires information from internal and external sources

                     –     strategic information would relate to the longer-term strategy on the
                           company's market share, which in turn informs the production plan.

                    The tactical level of management

                     –     requires information and instructions from the strategic level of
                           management, together with routine and regular quantitative information
                           from the operational level of management

                     –     the information must be detailed and precise.

                    Operational level of management


                     –     requires information and instructions from the tactical level of management

                     –     primarily concerned with the day-to-day performance of tasks

                     –     most of the information is obtained from internal sources.











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