Abstract-Since its infancy, Model Driven Engineering (MDE) research has primarily focused on technical issues. Although it is becoming increasingly common for MDE research papers to evaluate their theoretical and practical solutions, extensive usability studies are still uncommon. We observe a scarcity of User eXperience (UX)-related research in the MDE community, and posit that many existing tools and languages have much room for improvement with respect to UX. Industrial feedback indicates that UX is an important factor in the dissemination and adoption of new technologies, where UX is a key focus area in the software development industry. We consider this a fundamental problem that needs to be addressed in the community if MDE is going to gain widespread use. In this vision paper, we explore how and where UX fits into MDE by considering motivating use cases that revolve around different dimensions of integration: model integration, tool integration, and integration between process and tool support. These use cases help us to illuminate MDErelated UX challenges. Based on the literature and our collective experience in research and industrial collaborations, we propose future directions for addressing these challenges.

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