Meaning of software testing and quality assurance
To know the quality of a product or service under test is called Software Testing and the conducted test will provide you the information about the quality. For some people, quality is value and principle and with that in mind a well qualified engineer must ensure the quality in software testing to that person if that person has assigned you any project. If you want to become a qualified software testing engineer, you must do extensive theoretical and practical study from a well equipped institute and try to grab more knowledge about testing and the role of quality in testing and with experience can become an expert in testing.