Answer
Yes
Work Step by Step
I would expect a metric for measuring the complexity of a software system to be commutative in the sense that the complexity of the complete system would be the same regardless of the order in which features \( X \) and \( Y \) were added. This is because complexity metrics typically evaluate the overall structure and interactions within the system, which should remain consistent regardless of the order in which features are implemented. As long as the same features are present in the final system, the complexity metric should yield the same result.