Auditing is a systematic examination of financial records and operations to ensure accuracy, transparency, and compliance with standards. It encompasses several key components such as Internal Control, Internal Check, Internal Audit, and Vouching. Internal Control refers to the overall system of policies, procedures, and practices implemented by management to safeguard assets, prevent fraud, and ensure reliable financial reporting. Internal Check is a subset of internal control where duties are distributed among employees in such a way that the work of one automatically checks the work of another, minimizing errors and fraud. Internal Audit is an independent appraisal function within an organization that evaluates the effectiveness of internal controls, risk management, and governance processes. Vouching is a core auditing technique involving the examination of documentary evidence to verify the authenticity and accuracy of financial transactions. Together, these elements form the foundation of effective auditing, promoting accountability and operational efficiency.