The main mechanism for determining the effectiveness of the quality assurance activities is the quality audit. The audit is the structured review of the performance against the plan. The quality Audit is a structured independent review which is used to determine if the project activities are having the desired result. If the results do not show the conformance to the specifications then the quality assurance activities will have to be reviewed and improved.
The audits of the quality assurance might be conducted by the internal or external elements. A committed and honest project team may have no difficulty conducting the internal audits. The external audits often give more objective results and are often more respected by the third parties like the higher level management.
The Quality Audit approach affects the entire work lifecycle in the following ways: