Quality assurance of data entails measures aimed at ensuring that the data quality problems do not arise in the first place. This is done through constant data validation, monitoring, cleansing, and governance. Good quality assurance of data improves reporting, helps in meeting regulatory requirements, and improves customer satisfaction. With proper quality assurance of data, companies can have confidence in their data to aid them in their growth.
Source: https://dataqix.com/data-quality-management/