Black box Testing Techniques

BLACK BOX TESTING TECHNIQUES:  From testing principles, exhaustive testing is not possible, to conduct an optimal or better testing, professionals are following black box testing techniques to write test scenarios and test cases for respected modules functional testing

Due to this reason, black box testing techniques are also called as Functional Testing Techniques or Closed Box Testing Techniques

Black box testing techniques are classified into six sub topics:

1.       BVA (Boundary Values Analysis) is used to define SIZE or RANGE of inputs and outputs

2.       ECP (Equivalence Classes Partitions) is used to define valid and invalid TYPE of inputs and outputs

3.       DT (Decision Table) is used to define mapping in between inputs and outputs

4.       ORTHOGONAL ARRAYS is used to remove repetitive decisions in decision table

5.       STF (State Transition Flow) is a technique to write scenarios and cases in order with respect to the functionalities in SUT

6.       EG (Error Guessing) is a technique to guess defects in SUT based on past experience before software testing.