How to design voice based navigation for how-to videos
Proceedings of the 2019 CHI conference on human factors in computing systems, 2019•dl.acm.org
When watching how-to videos related to physical tasks, users' hands are often occupied by
the task, making voice input a natural fit. To better understand the design space of voice
interactions for how-to video navigation, we conducted three think-aloud studies using: 1) a
traditional video interface, 2) a research probe providing a voice controlled video interface,
and 3) a wizard-of-oz interface. From the studies, we distill seven navigation objectives and
their underlying intents: pace control pause, content alignment pause, video control pause …
the task, making voice input a natural fit. To better understand the design space of voice
interactions for how-to video navigation, we conducted three think-aloud studies using: 1) a
traditional video interface, 2) a research probe providing a voice controlled video interface,
and 3) a wizard-of-oz interface. From the studies, we distill seven navigation objectives and
their underlying intents: pace control pause, content alignment pause, video control pause …
When watching how-to videos related to physical tasks, users' hands are often occupied by the task, making voice input a natural fit. To better understand the design space of voice interactions for how-to video navigation, we conducted three think-aloud studies using: 1) a traditional video interface, 2) a research probe providing a voice controlled video interface, and 3) a wizard-of-oz interface. From the studies, we distill seven navigation objectives and their underlying intents: pace control pause, content alignment pause, video control pause, reference jump, replay jump, skip jump, and peek jump. Our analysis found that users' navigation objectives and intents affect the choice of referent type and referencing approach in command utterances. Based on our findings, we recommend to 1) support conversational strategies like sequence expansions and command queues, 2) allow users to identify and refine their navigation objectives explicitly, and 3) support the seven interaction intents.
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