6.3. Stability and scalability of the design by contract concern
One of the most significant results from the applied stability metrics is the number of
unique AO components modified through the four scenarios applied. Since the base
version, no new aspects were added to the HW system. Every change was inserted on
existing design by contract aspects. Another point to highlight was the reuse
achieved by the AO solution. Quite few DbC features were added to existing aspects
due to quantification properties which enabled the higher reusability performed by
the AO solution.