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The auditor must test entity-level controls that are important to the auditor's conclusion about whether the company has effective internal control over financial reporting. Depending on the auditor's evaluation of the effectiveness of the entity-level controls, the auditor can increase or decrease the amount of testing that they will perform.
Integrated test facility is considered a useful audit tool during an IT audit because it uses the same programs to compare processing using independently calculated data. This involves setting up dummy entities on an application system and processing test or production data against the entity as a means of verifying processing accuracy. [1]
For example, an auditor may: physically examine inventory as evidence that inventory shown in the accounting records actually exists (existence assertion); inspect supporting documents like invoices to confirm that sales did occur (occurrence); arrange for suppliers to confirm in writing the details of the amount owing at balance date as evidence that accounts payable is a liability (rights ...
The Institute of Internal Auditors based its control self-assessment methodology on the Total Quality Management approaches of the 1990s as well as the COSO's framework. The methodology became part of the International Standards for Professional Practice of Internal Auditing and was adopted by a large number of major organisations. [16]
Nature of the control (manual vs. automated): For fully automated controls, either a sample size of one or a "benchmarking" test strategy may be used. If IT general controls related to change management are effective and the fully automated control has been tested in the past, annual testing is not required.
Many audit-specific routines are used such as sampling. Provides documentation of each test performed in the software that can be used as documentation in the auditor’s work papers. Audit specialized software may perform the following functions: Data queries. Data stratification. Sample extractions. Missing sequence identification.
ISA 400 talks about the "walk through testing" or auditing in depth test. This standard was withdrawn in 2004, and has been replaced with the ISA 315, “Understanding the Entity and Its Environment and Assessing the Risks of Material Misstatement” and the ISA 330, “The Auditor’s Procedures in Response to Assessed Risks” [ citation needed ]
In the control testing stage, audit evidence is used by the auditor to consider the mix of audit test of controls and audit substantive tests. [9] In the substantive testing stage, audit evidence is defined as the information that the auditor needs to support the appropriation of financial statement assertions. [10]
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