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COMPUTER AUDIT – NETWROKS AND RELATED CONCEPTS



            ELECTRONIC DATA INTERCHANGES (EDIs)






                                                         •Segregation of duties through physical and logical access controls.
                  Fraud/ Error                           •Competent, reliable staff.

                                                         •Supervisory controls through use of codes to authorize
                                                           transactions






              Loss of manual                             •Compensation program controls such as use of check digits on



                       controls                            creditors account numbers as they are input, reasonableness
                                                           check on quantities field, missing data checks etc.








                 Lack of audit                           •Parameters within the messaging system should be set to ensure
                                                           that use is made of control logs, to compensate for any loss of
                                                           essential audit trails.
                            trail                        •Reports on electronic transactions should be adequate and timely

                                                           to allow for identification and treatment of problems and errors.



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