An Audit is the on-site verification activity of a process or quality system, to ensure compliance to requirements. An audit can apply to an entire organization or might be specific to a function, process, or production step.
A system audit also delivers objective evidence concerning the need for the reduction, elimination and most importantly, prevention of nonconformities. The outcomes of these audits can be used by the management for improving the performance of the organization.
It is a disciplined method to evaluate and improve the efficiency of a system. Audits are carried out in order to confirm that the individual elements within the system are effective and suitable in achieving the stated objectives.
They are conducted by looking for objective evidence and used as important management, compliance, quality and process improvement tool.
Check the Cardio-Phoenix experience with the scary Audit: https://www.qmswrapper.com/blog/gone-audit-day-fears-how-cardio-phoenix-took-the-fear-out-of-an-iso-audit-with-help-from-qmswrapper