This document discusses understanding audits, reviews, and continuous improvement. It defines an audit as an independent examination of records and activities to assess controls and ensure compliance. The purpose is to evaluate operations, compliance, economy, and effectiveness in achieving goals. Effective audits involve early involvement, informal assessments, knowledge sharing, and self-assessments. Audits can be internal or external. Internal audits independently appraise operations, while external audits are conducted by independent firms. Risk assessment, monitoring, and the Deming cycle of plan-do-check-act are important for continuous improvement.