To face the problems of scalability and complexity of information systems (IS), conceptual models must be able to understand the requirements needed for its development. Beyond the consideration of functional requirements, other more critical requirements have emerged: Non-functional requirements to reflect complex situations that occur in the real world. In this work, we introduce an approach for the integration of non-functional requirements in the conception of information systems. The proposed approach is an approach based on service-oriented architectures (SOA), model driven architecture (MDA), and automatic transformations of models.