OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible. This is an author-deposited version published in : http://oatao.univ-toulouse.fr/ Eprints ID : 15015 To link to this article : a b s t r a c t Self-Adaptive Systems modify their behavior at run-time in response to changing environmental conditions. For these systems, Non-Functional Requirements play an important role, and one has to identify as early as

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... sible the requirements that are adaptable. We propose an integrated approach for modeling and verifying the requirements of Self-Adaptive Systems using Model Driven Engineering techniques. For this, we use Relax, which is a Requirements Engineering language which introduces flexibility in Non-Functional Requirements. We then use the concepts of Goal-Oriented Requirements Engineering for eliciting and modeling the requirements of Self-Adaptive Systems. For properties verification, we use OMEGA2/IFx profile and toolset. We illustrate our proposed approach by applying it on an academic case study. (J.-M. Bruel).