approaches to testing Many students will have no experience of the use of CAATs, as auditors of clients using small computer systems will often audit ‘round the machine’. This means that the auditor reconciles input to output and hopes that the processing of transactions was error-free. The reason for the popularity of this approach used to be the lack of audit software that was suitable for use on smaller computers. However, this is no longer true, and audit software is available that enables the auditor to interrogate copies of client files that have been downloaded on to a PC or laptop. However, cost considerations still appear to be a stumbling block.
In the ‘through the machine’ approach, the auditor uses CAATs to ensure that computer - based application controls are operating satisfactorily.
Conclusion
The key objectives of an audit do not change in a computer environment. The auditor still needs to obtain an understanding of the system in order to assess control risk and plan audit work to minimise detection risk. The level of audit testing will depend on the assessment of key controls. If these are programmed controls, the auditor will need to ‘audit through the computer’ and use CAATs to ensure controls are operating effectively.
In small computer-based systems, ‘auditing round the computer’ may suffice if sufficient audit evidence can be obtained by testing input and output.
approaches to testing Many students will have no experience of the use of CAATs, as auditors of clients using small computer systems will often audit ‘round the machine’. This means that the auditor reconciles input to output and hopes that the processing of transactions was error-free. The reason for the popularity of this approach used to be the lack of audit software that was suitable for use on smaller computers. However, this is no longer true, and audit software is available that enables the auditor to interrogate copies of client files that have been downloaded on to a PC or laptop. However, cost considerations still appear to be a stumbling block.In the ‘through the machine’ approach, the auditor uses CAATs to ensure that computer - based application controls are operating satisfactorily.ConclusionThe key objectives of an audit do not change in a computer environment. The auditor still needs to obtain an understanding of the system in order to assess control risk and plan audit work to minimise detection risk. The level of audit testing will depend on the assessment of key controls. If these are programmed controls, the auditor will need to ‘audit through the computer’ and use CAATs to ensure controls are operating effectively.In small computer-based systems, ‘auditing round the computer’ may suffice if sufficient audit evidence can be obtained by testing input and output.
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