• Black Box Testing is a software testing method that involves testing the functions of software applications without knowing the internal code structure, implementation details, or internal routes. Black Box Testing is a type of software testing that focuses on the input and output of software applications and is totally driven by software requirements and specifications. Behavioral testing is another name for it.
• The system's requirements and specifications are assessed first.
• To see if SUT processes valid inputs successfully, the tester selects legitimate inputs (positive test scenario). In addition, certain faulty inputs are chosen (negative test scenario) to ensure that the SUT can detect them.
• For each of those inputs, the tester determines predicted outcomes.
• With the chosen inputs, the software tester creates test cases.
• The test cases are carried out.
• The actual outputs are compared to the expected outputs by the software tester.
• If there are any flaws, they are corrected and retested.

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