As answered by Romeo Ninov in Black Box testing, tester is unaware about the application internal structure.

This method is named so because the software program, in the eyes of the tester, is like a black box; inside which one cannot see. This method attempts to find errors in the following categories:

• Incorrect or missing functions
• Interface errors
• Errors in data structures or external database access
• Behavior or performance errors
• Initialization and termination errors

Refrence:

• http://softwaretestingfundamentals.com/black-box-testing/

As answered by Romeo Ninov in Black Box testing, tester is unaware about the application internal structure.

This method is named so because the software program, in the eyes of the tester, is like a black box; inside which one cannot see. This method attempts to find errors in the following categories:

• Incorrect or missing functions
• Interface errors
• Errors in data structures or external database access
• Behavior or performance errors
• Initialization and termination errors

Refrence:

• http://softwaretestingfundamentals.com/black-box-testing/