Need and methods of auditing Information systems.
Need and methods of auditing Information systems
AUDITING OF INFORMATION SYSTEMS
OBJECTIVES
• Ensure computer based financial and other information reliable
• Ensure all records included while processing
• Ensure protection from frauds
AUDIT METHODS
• AUDITING AROUND COMPUTER : Take sample inputs and manually apply processing rules and compare outputs with computer outputs
• AUDITING THROUGH THE COMPUTER : Establish audit trail which allows examining selected intermediate results. Control totals provide intermediate checks
AUDITING THROUGH THE COMPUTER
•Facility to trace transaction value and print intermediate results
• Selective printing of records meeting criteria specified by the auditor For example :Inactive accounts, overactive accounts, accounts with high balance
• Comparing credit and debit balances
• Ensure logs are kept of who did what in critical data entry and processing to fix responsibility. Called an Audit trail.
• Auditor’s own check inputs and expected outputs.
AUDITING WITH THE COMPUTER
Use special audit packages to check system Audit package allows
• Extracting data based on the specified criterion for inspection (e.g.
Students with wide disparity in marks in two subjects)
• Totaling specified subset of data for check
• Procedure to check sale discounts
Process with independent data file created by auditor and verify to see if system is as per specification
Comments
Post a Comment