One of the most important factors to consider when discussing computer audit is that the term “computer
audit” can mean many different things to different people. What may be regarded as computer auditing
in one organisation, and very much the realm of the specialist computer auditor, may be undertaken by
business auditors in another similar organisation. For example, computer audit may be restricted to
auditing systems software in one organisation, whilst areas such as auditing systems under development
may be the responsibility of the business auditor. Similarly, in some organisations, it is not uncommon
for the role of computer audit to be extended to include the review of clerical procedures and the
production of compliance based audit work programmes for field auditors, thereby providing a
wider systems audit service. There are no hard and fast rules as to what constitutes computer audit. Often,
similar sized organisations operating in the same sector may have different approaches to computer audit.
Even where there appears to be commonality in the scope of audit areas, there can be significant variations in
the depth of auditing undertaken. An audit of an operating system in one organisation may require
between 5 and 10 man-days, whilst in another, the same operating system may be subject to a more
detailed examination lasting several months.
One of the most important factors to consider when discussing computer audit is that the term “computer
audit” can mean many different things to different people. What may be regarded as computer auditing
in one organisation, and very much the realm of the specialist computer auditor, may be undertaken by
business auditors in another similar organisation. For example, computer audit may be restricted to
auditing systems software in one organisation, whilst areas such as auditing systems under development
may be the responsibility of the business auditor. Similarly, in some organisations, it is not uncommon
for the role of computer audit to be extended to include the review of clerical procedures and the
production of compliance based audit work programmes for field auditors, thereby providing a
wider systems audit service. There are no hard and fast rules as to what constitutes computer audit. Often,
similar sized organisations operating in the same sector may have different approaches to computer audit.
Even where there appears to be commonality in the scope of audit areas, there can be significant variations in
the depth of auditing undertaken. An audit of an operating system in one organisation may require
between 5 and 10 man-days, whilst in another, the same operating system may be subject to a more
detailed examination lasting several months.
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