Levels of testing? functional and non functional testing?

FUNCTIONAL TESTING     AND    NON-FUNCTIONAL TESTING

FUNCTIONAL TESTING:
                  1) UNIT TESTING
                  2) INTIGRATION TESTING
                  3)SYSTEM TESTING
                  4) REGRESSION TESTING
                  5)ACCEPTANCE TESTING    (ALPHA & BETA TESTING)


NON-FUNCTIONAL TESTING:
                1)PERFORMANCE TESTING (LOAD & STRESS TESTING)
                2)USABILITY TESTING
                3) SECURITY TESTING (AUTHORIZATION, ACCESS CONTROL, ENCRYPTION)
                4)DATA BASE TESTING
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