According to PSQC 1, what process evaluates the firm's system of quality control?

The process that evaluates the firm's system of quality control, according to PSQC 1, is the monitoring of engagements. This process involves the ongoing assessment of whether the firm’s quality control policies and procedures are being effectively applied in practice. It focuses on examining the quality of work performed, ensuring compliance with professional standards, and identifying areas for improvement.

Monitoring of engagements typically includes the review of engagement documents, consultation with team members, and assessing adherence to quality control measures established by the firm. By regularly monitoring engagements, firms can detect potential issues in their systems and make necessary adjustments to enhance their quality control framework.

While reviewing client contracts, training personnel, and obtaining quality assessments from external auditors are important components of a firm’s overall quality control strategy, they do not directly evaluate the effectiveness of the quality control system. Rather, they support the broader goals of maintaining high-quality audits and compliance with regulations.