ABSTRACT

This paper presents key aspects that designers and Human–Computer Interaction practitioners might encounter when designing multimodal interaction for older adults, focusing on the trade-offs that might occur as part of the design process. The paper gathers literature on multimodal interaction and assistive technology, and describes a set of design challenges specific for older users. Building on these main design challenges, four trade-offs in the design of multimodal technology for this target group are presented and discussed. To highlight the relevance of the trade-offs in the design process of multimodal technology for older adults, two of the four reported trade-offs are illustrated with two user studies that investigate mid-air and speech-based interaction with a tablet device. The first study explores the design trade-offs related to redundant multimodal commands in older, middle-aged and younger adults, whereas the second one investigates the design choices related to the definition of a set of mid-air one-hand gestures and voice input commands for older adults. Further reflections highlight the design trade-offs that such considerations bring in the process, providing an overview of the design choices involved and of their potential consequences.

摘要

本文介绍了设计师和人机交互从业者在为老年人设计多模式交互时可能遇到的关键方面，重点介绍了设计过程中可能发生的权衡取舍。该论文收集了有关多模式交互和辅助技术的文献，并描述了一系列针对老年用户的设计挑战。在这些主要设计挑战的基础上，提出并讨论了针对该目标群体的多式联运技术设计中的四个权衡。为了突出权衡在老年人多模式技术设计过程中的相关性，四个报告的权衡中的两个通过两个用户研究来说明，这些研究调查了与平板设备的空中和基于语音的交互。第一项研究探讨了与老年人、中年和年轻人的冗余多模式命令相关的设计权衡，而第二项研究调查了与一组空中单手手势和语音输入的定义相关的设计选择老年人的命令。进一步的思考突出了这些考虑在过程中带来的设计权衡，提供了所涉及的设计选择及其潜在后果的概述。