The purpose of quality assurance to create confidence that the quality plan and control are working properly to meet the client quality standards and time must be allocated to execute project and procedures are being follows. Process Analysis. The flow chart of quality processes are compare to the process follow during actual operation. Experiments that sample products and processes and collect data are examined to see if they are following statistically valid sample technique and measurement methods that have small tolerance to detect variation within control limits. Because the project is temporary , there are fewer opportunity to learn and improve within one project if it has short duration and the quality manager have to learn from the experience and change the project from the next project of similar complexity profile. The quality Audit. For additional confidence and assurances an outside group can come in to review the quality procedure and accuracy of the collected data. This processes is similar to a financial audit and is called a quality audit. The purpose of a quality audit is to compare the stated quality goals of the project against the actual practice and the procedure the are used and is not a certification of the quality product themselves. The purpose of quality assurance to build confidence in the client that quality standards and procedures are being follows. This is done by an internal review of the plan , testing and revision policies or by an audit of the same items perform by same external group or agency .