A system audit report (SAR) is a comprehensive analysis of a computer system, software, or hardware, that is conducted to evaluate its performance, effectiveness, and security. This report includes a detailed examination of the system's configurations, data structures, software, and hardware components to identify any vulnerabilities, errors, or inefficiencies that may affect the system's functionality and security.

System audit report (SAR) testing is a critical process that helps ensure the proper functioning of a system and its compliance with regulatory and security standards.