In this first journal assignment, you will explore the role of testing in the SDLC$.$ You will explain the role and importance of testing in the SDLC and describe any exceptions in which the testing stage would occur earlier or later than it typically does in the life cycle. Address the following questions:

What occurs during the testing stage of the SDLC$?$

Why is the testing stage vital to a successful SDLC$?$

Are there any exceptions in which the testing stage would occur earlier or later than it typically does in the SDLC$?$ Explain.