Enhancing Mobile Visualisation Interactivity: Insights on a Mixed-fidelity Prototyping Approach

The dynamic nature of mobile devices presents significant challenges for mobile information visualisation design. The limited screen space of mobile devices requires increased user interaction to effectively accommodate information, posing challenges for touch interaction design. In turn, gesture design must balance ergonomics, adaptability to diverse contexts, and intuitive user experiences. Early design evaluation through low-fidelity prototypes is essential for detecting usability issues in a cost-effective and timely manner. To compensate the limited support for touch gestures and animated transitions offered by existing prototyping tools, we are developing a proof-of-concept for a tool that facilitates the creation of interactive animated prototypes of mobile visualisations. This paper presents the results of an exploratory test conducted on a preliminary version of our tool. We report four reflections about the challenges emerged during testing that, we believe, can foster further discussions and research towards obtaining tools specifically tailored to mobile infovis prototyping.