Usage of architectural styles and technologies in IT companies and organizations

As in many other software engineering activities, Non-Functional Requirements (NFR) are fundamental in the process of selection of the architectural style and the technologies for developing a software system. To know more about this issue, we are currently driving a survey to find out which architectural styles and technologies are being in use in IT companies and organizations, and their relation to types of NFR. We want to apply this knowledge to Model-Driven Software Development (MDSD), and in fact we are currently developing a framework that considers NFR in the MDSD process.