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Answer Posted / rahul
black box testing techniques based on external
specification without of how the system is constructed.
black box Testing Strategies/Techniques
1. black box testing should make use of randomly generated
inputs (only a test range should be specified by the
tester), to eliminate any guess work by the tester as to
the methods of the function
2. data outside of the specified input range should be
tested to check the robustness of the program
3. boundary cases should be tested (top and bottom of
specified range) to make sure the highest and lowest
allowable inputs produce proper output
4. the number zero should be tested when numerical data is
to be input
4.stress testing should be performed (try to overload the
program with inputs to see where it reaches its maximum
capacity), especially with real time systems
5. crash testing should be performed to see what it takes
to bring the system down
6. test monitoring tools should be used whenever possible
to track which tests have already been performed and the
outputs of these tests to avoid repetition and to aid in
the software maintenance
7. other functional testing techniques include: transaction
testing, syntax testing, domain testing, logic testing, and
state testing.
8.finite state machine models can be used as a guide to
design functional tests
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