Assessing a requirements evolution approach: Empirical studies in the Air Traffic Management domain

Requirements evolution is still a challenging problem in engineering practices. This paper presents a family of empirical studies about the applicability and usefulness of an approach for modeling evolving requirements. The empirical studies involved different categories of users (researchers, master students and domain experts) who have applied the approach to a real industrial evolutionary scenario drawn from the Air Traffic Management (ATM) domain. The results from the studies demonstrated the usefulness of the approach for requirements evolution in complex industrial settings such as the ones in the ATM domain. Furthermore, the validation provided us useful insights about the problem of requirements evolution faced in different industrial contexts.