This can be difficult to determine. Many modern software applications are so complex,and run in such an interdependent environment, that complete testing can never be done. Common factors in deciding when to stop are:
What is a Release candidate ?
What is a story board ?
What is a Test-Driven Development (TDD) ?
What is a Test stub ?
What is a Sprint ?
How can World Wide Web sites be tested?
What is Bug life cycle?
What is a Test Server?
What is mean by release notes?
Give an example of high priority and low severity, low priority and high severity?