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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


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








                                                         •Parameters within the messaging system should be set to ensure
                 Lack of audit                             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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