Quality assurance (QA) in software development is the process of ensuring that software products meet specified quality standards, requirements, and user expectations. It involves a series of activities and techniques that are designed to identify and prevent defects and errors in the software development process.
In software development, quality assurance begins with the establishment of quality standards and the development of quality control processes. These may include requirements gathering, design, coding, testing, and deployment. Quality assurance is also responsible for the creation of testing plans, test cases, and test scripts to ensure that the software is tested thoroughly and meets the requirements.