@Override
    public boolean betterThan(Num criterionValue1, Num criterionValue2) {
        return criterionValue1.isLessThan(criterionValue2);
    }
@Test
    public void betterThan() {
        AnalysisCriterion criterion = getCriterion();
        assertTrue(criterion.betterThan(numOf(0.9), numOf(1.5)));
        assertFalse(criterion.betterThan(numOf(1.2), numOf(0.4)));
    }