The International Organization for Standardization (ISO). Second edition. 2011-11-15. This second edition cancels and replaces the first edition (ISO 19011:2002), which has been technically revised. 52p. This International Standard provides guidance on auditing management systems, including the principles of auditing, managing an audit programme and conducting management system audits, as well as guidance on the evaluation of competence of individuals involved in the audit process, including the person managing the audit programme, auditors and audit teams.