Boundary Value Analysis

In a system designed to work out the tax to be paid:
An employee has £4000 of salary tax free. The next £1500 is taxed at 10%
The next £28000 is taxed at 22%
Any further amount is taxed at 40%
To the nearest whole pound, which of these is a valid Boundary Value Analysis test

Please explain how to get the BVA?

Questions by snehal

Showing Answers 1 - 1 of 1 Answers


  • Oct 6th, 2013

Boundary value is just below or Just above the extreme edges of input Data
So As Salary 4000 is tax free
next 1500 is taxed at 10% => 4000+1500=5500 taxed at 10%
next 28000 is taxed at 22% =>28000+5500= 33500 is taxed at 22%
any further taxed at 40%
so valid boundary value is 33501.

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