Metamorphic testing · Question 42 of 60
A creditworthiness model is to be tested. Which metamorphic relation is a monotonicity relation?
1 answer is correct. Hard
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Answer
- C If income increases with otherwise identical details, the credit score must not decrease
Explanation
Monotonicity means: if the input changes in one direction, the output moves in a predictable direction. More income must therefore not lower the credit score. A name change without effect is invariance, and identical results for identical applications are consistency. A fixed value would be a classic expected result.