A quality audit is

• a structured, independent review to determine whether project activities comply with organizational and project policies, processes, and procedures.
• the process of regularly evaluating overall project performance to provide confidence that the project will satisfy relevant quality standards.
• an approach where the team members meet regularly to improve the process of quality control on their project.
• the process of determining the appropriate actions to increase the effectiveness and efficiency of the project to provide added benefits to project stakeholders.