Quality is one of the important factors when it comes to a product or the service. Quality of a product differentiates for all the products and services. Quality control is important since it is essential to build a successful business and satisfies the needs of the customer. Quality control and assurance is an important part of product or medical devices. Quality control and assurance is to protect their customers and all it protects the company from being losing millions of dollars on litigation and other charges. If the product is not good, then the image of the company becomes bad in the market as it not able to maintain the quality of the product. It is better to pay quality engineer rather than losing million for the bad quality products. Customers always prefer the products and services which has good quality and doesn’t cause any harm. If the quality is good them it stands out from its competitors. So, quality control and quality assurance no only protect the customers but also the company.