Quality Assurance
Quality assurance (QA) is any systematic process of determining whether a product or service meets specified requirements.
The concept of QA as a formalized practice started in the manufacturing industry, and it has since spread to most industries, including software development.
Quality assurance helps a company create products and services that meet the needs, expectations and requirements of customers. It yields high-quality product offerings that build trust and loyalty with customers. The standards and procedures defined by a quality assurance program help prevent product defects before they arise.