Full academic article: https://www.frontiersin.org/articles/10.3389/fpsyg.2018.00797/full
Practitioner summary: https://blog.prototypr.io/the-six-spheres-of-tech-experience-424326edb680
by: Dorian Peters, Rafael Calvo & Richard M. Ryan
METUX is a model for "Motivation, Engagement and Thriving in User Experience". It leverages proven psychological theory on the core elements of wellbeing, motivation and engagement to arrive at a framework for understanding and designing for wellbeing, as well as measures for evaluating wellbeing impacts of a technology.