Browsing by Author "Bressa, Nathalie"
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- ItemOpen AccessInput Visualization: Collecting and Modifying Data with Visual Representations(ACM, 2024-05-11) Bressa, Nathalie; Louis, Jordan; Willett, Wesley; Huron, SamuelWe examine input visualizations, visual representations that are designed to collect (and represent) new data rather than encode preexisting datasets. Information visualization is commonly used to reveal insights and stories within existing data. As a result, most contemporary visualization approaches assume existing datasets as the starting point for design, through which that data is mapped to visual encodings. Meanwhile, the implications of visualizations as inputs and as data sources have received little attention—despite the existence of visual and physical examples stretching back centuries. In this paper, we present a design space of 50 input visualizations analyzing their visual representation, data, artifact, context, and input. Based on this, we identify input modalities, purposes of input visualizations, and a set of design considerations. Finally, we discuss the relationship between input visualization and traditional visualization design and suggest opportunities for future research to better understand these visual representations and their potential.
- ItemOpen AccessSketching and Ideation Activities for Situated Visualization Design(2019-06) Bressa, Nathalie; Wannamaker, Kendra; Korsgaard, Henrik; Willett, Wesley J.; Vermeulen, JoWe report on findings from seven design workshops that used ideation and sketching activities to prototype new situated visualizations — representations of data that are displayed in proximity to the physical referents (such as people, objects, and locations) to which the data is related. Designing situated visualizations requires a fine-grained understanding of the context in which the visualizations are placed, as well as an exploration of different options for placement and form factors, which existing methods for visualization design do not account for. Focusing on small displays as a target platform, we reflect on our experiences of using a diverse range of sketching activities, materials, and prompts. Based on these observations, we identify challenges and opportunities for sketching and ideating situated visualizations. We also outline the space of design activities for situated visualization and highlight promising methods for both designers and researchers.