Quality assurance, often known as quality control, refers to many procedures and measures used to ensure corporate quality needs. Quality assurance, as a component of a company's quality management, includes all technological and organizational measures. These metrics are used to create and maintain a specific product or service quality. Moreover, when it comes to Total quality management (TQM), it is required that all stakeholders in an organization collaborate to improve processes, products, services, and the company's culture.

Quality assurance identifies and eliminates potential negative influences on the quality of a final product by employing techniques such as process descriptions or optimisation cycles. Thus, quality assurance guarantees that corporate quality management criteria are followed and implemented. If the established quality standard is not met, the end product is either removed from the cycle or reworked until it meets the requirement. The quality of a product or service is critical for the purchasing decision and the increase in customer confidence.