Quality Assurance is the process of ensuring that the products or services meet the desired level of quality standards set by the company. In the case of Hexawinds, Quality Assurance is crucial in ensuring that their software products are error-free and meet the requirements of their clients. This involves testing the software thoroughly to identify and fix any bugs or glitches that may compromise the functionality or stability of the product. 

Quality Assurance also involves validating the user interface and ensuring that it is user-friendly and accessible to all users. The outcome of Quality Assurance is an improved product that meets the expectations of the client and provides a great user experience.