The ubiquity and on-the-go availability of mobile devices makes them central to many tasks such as interpersonal communication and media consumption. However, despite the potential of mobile devices for on-demand exploratory data visualization, existing mobile interactions are difficult, often using highly custom interactions, complex gestures, or multi-modal input. We synthesize limitations from the literature and outline four motivating principles for improved mobile interaction: leverage ubiquitous modalities, prioritize discoverability, enable rapid in-context data exploration, and promote graceful recovery. We then contribute thirteen interaction candidates and conduct a formative study with twelve participants who experienced our interactions in a testbed prototype. Based on these interviews, we discuss design considerations and tradeoffs from four main themes: precise and rapid inspection, focused navigation, single-touch and fixed orientation interaction, and judicious use of motion.

翻译：移动设备的普及性和随时随地可用性使其成为人际通信和媒体消费等诸多任务的核心。然而，尽管移动设备具有按需探索式数据可视化的潜力，现有的移动交互方式却存在困难，往往采用高度定制化交互、复杂手势或多模态输入。我们综合文献中存在的局限性，提出了改进移动交互的四条激励原则：利用普适模态、优先考虑可发现性、实现快速上下文数据探索、促进优雅恢复。我们随后提出了十三个候选交互方案，并对十二名参与者进行了一项形成性研究，让其在测试平台原型中体验我们的交互方案。基于这些访谈，我们从四个主题讨论了设计考虑和权衡：精确快速审查、聚焦导航、单点触控与固定方向交互、以及合理使用运动。