Chapter 12 - Fit Criteria and Rationale
Fit Criteria and Rationale Fit Criterion: A Fit Criterion quantifies or measures the requirement, which makes it testable. It specifies that how one will know and measure that whether the implementation meets the requirement or not. It quantifies the behavior, the performance, or some other quality of the requirement. A fit criterion is important as once the requirement is measured, then there is little room for any misunderstanding or ambiguity because it makes it understandable and testable. Why is Fit Criterion needed? When the requirement for any product is supposed to perform any kind of functions or to possess some property, then the testing activity must be able to show what the product does. Then to perform such tests, the requirement must have a benchmark so that the testers can compare the delivered product with the requirement. The benchmark is the fit criterion, i.e. a quantification of the requirement which demonstrate the standard that the p...