Quality Assurance is part of the manufacturing quality system. It aims to prevent mistakes in the manufacturing process and defects in the finished product by implementing and monitoring processes and procedures.
Individuals within the Quality Assurance department monitor these processes and procedures, take measurements and compare them against a predefined standard. Any deviation from the standard results in corrective action at the process or procedure. This provides a feedback loop mechanism which helps to avoid mistakes and defects.
It is important to note that Quality Assurance is operating at the level of manufacturing processes and procedures. While the aim is to ultimately maintain the quality of the finished product, Quality Assurance is not concerned with measurement or inspection of that finished product – that is the role of Quality Control.
Instead, Quality Assurance focuses on areas such as inspection of raw materials, monitoring assemblies, inspection of processes and implementation of production measures. The ultimate aim of Quality Assurance is to have in place the processes that allow a repeatable result within the manufacturing process – a satisfactory finished product that meets all industry standards.