Toward an extended assurance infrastructure: Examining document, risk, and evidence traceability in independent audit files
Published 2026-09-25
Keywords
- Bağımsız Denetim, Genişletilmiş Güvence, Dijital Denetim Dosyası, Denetim Kanıtı
- Independent Auditing, Extended Assurance, Digital Audit File, Audit Evidence JEL Codes: M42, M41, M15
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Copyright (c) 2026 Mustafa Terzioğlu

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
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Abstract
This study examines the digitalization potential of a single company’s independent audit file for the 2025 financial year within an extended assurance framework. A qualitative single-case study design using document analysis was adopted. Working papers, risk assessments, tests of controls, tests of details, external confirmations, financial statements, information technology documents, and the auditor’s report were examined through content analysis, process mapping, and an analytical evaluation matrix. The findings suggest that the file provides a strong initial data infrastructure for risk-procedure-evidence traceability. The Extended Assurance Potential Score was calculated as 3.83. This exploratory assessment indicates the file’s potential to become a digital assurance infrastructure and is not a validated audit quality measure. The auditor’s report was found to reflect the volume of evidence in the file only to a limited extent. The study suggests that digitalization may support professional judgment and evidence evaluation rather than replace the auditor.
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