Development of interactive systems and their user interfaces combines engineering and design, formal and informal development methods from different domains. Diverse models and tools can be used to support the developers’ work. In model-driven development, software systems are specified systematically using dedicated models for different aspects of the system. Yet, appropriate design of user interfaces is as important as functional correctness. This workshop provides a forum of multi-disciplinary discussion on how to integrate model-driven development with the often more informal methodologies used in user-centered design and engineering. Starting point of the discussion are the tools, models, methods and experiences of the workshop participants.