quality assurance(A planned and systematic means for assuring that defined standards, practices, procedures, and methods are applied to the project and its results)
quality assurance; quality control The inspection, analysis, and other relevant actions taken to provide control over what is being done, manufactured, or fabricated, so that a desirable level of quality is achieved and maintained
quality control The checking of products to ensure that they conform to set standards(Verificación del producto para asegurar su conformidad con las normas); quality control(The checking of products to ensure that they conform to set standards, Verificación del producto para asegurar su conformidad con las normas)