This document discusses different types of software testing: black box testing which tests without knowledge of internal workings; white box testing which tests with knowledge of internal code; and grey box testing which tests with limited internal knowledge. Black box testing is well-suited for large code but has limited coverage, white box testing achieves maximum coverage but requires skilled testers, and grey box testing offers benefits of both but tests may be redundant.

1. SOFTWARE TESTING

2. #
Methods of software testing
Black box testing
White box testing
Grey box testing

3. #
Black box testing
 Testing with out having any knowledge
of interior workings of the application is
black box testing
 Tester does not have any access to
source code
 In black box test, tester will interact with
user interface by providing inputs and
examining outputs

4. #
Advantages of black box testing
 Well suited and efficient for large code , code
access is not required.
 Clearly separates user’s perspective from the
developers perspective.
 Large numbers of moderately skilled testers
can test the application with no knowledge of
implementation, programming language or
operating systems.

5. #
Disadvantages of black box testing
 Limited Coverage since only a selected
number of test scenarios are actually
performed.
 Tester can not target specific code segments
or error prone areas
 Test cases are difficult to design