Expert OpinionAccuracy Testing
How do you validate that 1 + 1 always equals 2 in payroll?
The Expert's Answer
"In my experience as a QA, payroll accuracy is the #1 trust-builder. We use 'Reference Runs' where we compare the system output against manual calculations for every possible permutation—mid-month joiners, partial leaves, and variable allowances. If there is even a 1-paise difference, the build fails."
Context & Impact
Validating that 1 + 1 always equals 2 in payroll.
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