A quality assurance tester, or QA tester, works to establish and maintain standards in various professional fields, like software production, video games, digital products, web platforms and communication networks. They are also in charge of finding flaws, tracing error sources and problem-solving independently and in QA teams. In this capacity, they also work closely with developers to improve the functionality, effectiveness and productivity of the workplace as well as the quality of the product.
Quality assurance testing is sometimes confused with quality control testing, but the two differ significantly. Quality control refers to the process of detecting flaws in products that have already been manufactured and services delivered to customers. In comparison, quality assurance involves the internal developmental process of products and services before they are released to the public.