Buy a Copy of the ISO 19011 Standard, which is available in two versions
It offers comprehensive guidelines for quality and/or environmental management systems audit. The objective is that by using this document, organizations can save effort, time, effort and expenditure by:
ISO 19011 was designed so organizations can efficiently perform audits using these guidelines. Within one single standard there are now four critical decision/support resources for the efficient planning, conduct and evaluation of quality and environmental audits:
It is a set of principles that will help anyone perform an audit effectively because it focuses on the underlying processes of audit management. It could be used when auditing any management system.