Evaluation of a digital interface that integrates user diversity to aware individuals about energy

Human factors play a key role on the improvement of energy efficiency at the workplace. Hence, they should be taken into account. Literatureon Human-Computer Interaction(HCI) has demonstrated that ‘one-size-fits-all' solutions failaddressing the user diversity in office environments. Therefore, this paper exposes howUser Centered Design (UCD) and User Experience (UX) can actas pivotal tools to enhance user engagement in digital interfaces that promote sustainable behaviour at work. To accomplish this goal, a digital interface that offers a range of strategies and functions directed to different user archetypes has been designed and evaluated both quantitatively and qualitatively. Analyseddata revealed the importance of the UX to design positive interactions which is a predictor of future system usage and engagement. The diversity of users and the impact of UCD on the Design for Sustainable Behaviour are discussed. Besides, future iterations of the design of a digital system that adapts dynamically to user profilesare proposed