In the middle of collective and public spaces, cylindrical displays inform users at 360° using color-changing abilites only. Inspired by cairns, we designed CairnFORM, a shape-changing cylindrical display that informs users at 360° with more expressiveness using color-changing and shape-changing abilities. As a use case, we focus on promoting energy cleanliness in the workplace by helping employees to shift laptop battery charge to peak hours of local renewable energy production: We use CairnFORM to display a physical ring chart visualizing 10-hours forecast data of local renewable energy production. Through user studies with CairnFORM, we show that shape-changing cylindrical displays (1) are usable for informing users through data physicalization, (2) are usable for unobtrusively notifying users through peripheral interaction, and (3) offer a greater user experience over time than planar displays. We classifed 67 interative systems promoting energy sobriety (i.e. using less energy) and energy cleanliness (i.e. using cleaner energy). At the moment, these systems are mainly designed for promoting energy sobriety in domestic spaces using mobile graphical interfaces (e.g. web or mobile apps) or fixed ambient physical interfaces (e.g. connected objects). We focus on using cylindrical displays for promoting energy cleanliness in collective and public spaces.

Classification

In the middle of collective and public spaces, cylindrical displays inform users at 360° using color-changing abilites only. Inspired by cairns, we designed CairnFORM, a shape-changing cylindrical display that informs users at 360° with more expressiveness using color-changing and shape-changing abilities. The shape-changing ability of CairnFORM is the dynamic revolution symmetry: It can morph to different discrete surfaces of revolution e.g. a discret surface of a cylinder, a cone, a double cone, an ellipsoid.
We focused on promoting energy cleanliness in the workplace by helping employees to shift laptop battery charge to peak hours of local renewable energy production. We implemented SEDYL, a tool that simulates the shift of laptop battery charge. Using SEDYL, we validated instructions to give to employees. To help employees apply the instructions in situ, we used CairnFORM to display a chart visualizing 10-hours forecast data of local renewable energy production.

Sedyl

Through three user studies with CairnFORM, we show that shape-changing cylindrical displays (1) are usable for informing users through data physicalization, (2) are usable for unobtrusively notifying users through peripheral interaction, and (3) offer a greater user experience over time than planar displays: After two months in a workplace, we observe that CairnFORM is as pragmatic as a flat screen but more hedonic than a flat screen for the use case proposed. Maxime Daniel, Guillaume Rivière, and Nadine Couture. 2019. CairnFORM: a Shape-Changing Ring Chart Notifying Renewable Energy Availability in Peripheral Locations. In Proceedings of the 21th International Conference on Tangible, Embedded, and Embodied Interaction (TEI '19). ACM, New York, NY, USA, 275-286.

Maxime Daniel, Guillaume Rivière, and Nadine Couture. 2018. Designing an Expandable Illuminated Ring to Build an Actuated Ring Chart. In Proceedings of the 20th International Conference on Tangible, Embedded, and Embodied Interaction (TEI '18). ACM, New York, NY, USA, 140-147.

Maxime Daniel, Guillaume Rivière, and Nadine Couture. 2017. CAIRNS: an Ambient Tangible Interface for Shifting Energy Demand at Work. In Proceedings of the 29th Conference on l'Interaction Homme-Machine (IHM '17). ACM, New York, NY, USA, 221-231.

Maxime Daniel, Guillaume Rivière, and Nadine Couture. 2016. Persuasive Interactive Systems in public and collective spaces: what Role for Tangible Interfaces ?. In Actes de la 28ième conférence francophone sur l'Interaction Homme-Machine (IHM '16). ACM, New York, NY, USA, 221-229.

Maxime Daniel, Guillaume Rivière, Nadine Couture, and Stéphane Kreckelbergh. 2016. An Analysis of Persuasive Technologies for Energy Demand Side Management. In Actes de la 28ième conférence francophone sur l'Interaction Homme-Machine (IHM '16). ACM, New York, NY, USA, 197-210.