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. 2022 Feb 18;22(4):1614.
doi: 10.3390/s22041614.

The Investigation of Adoption of Voice-User Interface (VUI) in Smart Home Systems among Chinese Older Adults

Yao Song  1   2 , Yanpu Yang  3 , Peiyao Cheng  4
Affiliations

The Investigation of Adoption of Voice-User Interface (VUI) in Smart Home Systems among Chinese Older Adults

Yao Song et al. Sensors (Basel). .

Abstract

Driven by advanced voice interaction technology, the voice-user interface (VUI) has gained popularity in recent years. VUI has been integrated into various devices in the context of the smart home system. In comparison with traditional interaction methods, VUI provides multiple benefits. VUI allows for hands-free and eyes-free interaction. It also enables users to perform multiple tasks while interacting. Moreover, as VUI is highly similar to a natural conversation in daily lives, it is intuitive to learn. The advantages provided by VUI are particularly beneficial to older adults, who suffer from decreases in physical and cognitive abilities, which hinder their interaction with electronic devices through traditional methods. However, the factors that influence older adults' adoption of VUI remain unknown. This study addresses this research gap by proposing a conceptual model. On the basis of the technology adoption model (TAM) and the senior technology adoption model (STAM), this study considers the characteristic of VUI and the characteristic of older adults through incorporating the construct of trust and aging-related characteristics (i.e., perceived physical conditions, mobile self-efficacy, technology anxiety, self-actualization). A survey was designed and conducted. A total of 420 Chinese older adults participated in this survey, and they were current or potential users of VUI. Through structural equation modeling, data were analyzed. Results showed a good fit with the proposed conceptual model. Path analysis revealed that three factors determine Chinese older adults' adoption of VUI: perceived usefulness, perceived ease of use, and trust. Aging-related characteristics also influence older adults' adoption of VUI, but they are mediated by perceived usefulness, perceived ease of use, and trust. Specifically, mobile self-efficacy is demonstrated to positively influence trust and perceived ease of use but negatively influence perceived usefulness. Self-actualization exhibits positive influences on perceived usefulness and perceived ease of use. Technology anxiety only exerts influence on perceived ease of use in a marginal way. No significant influences of perceived physical conditions were found. This study extends the TAM and STAM by incorporating additional variables to explain Chinese older adults' adoption of VUI. These results also provide valuable implications for developing suitable VUI for older adults as well as planning actionable communication strategies for promoting VUI among Chinese older adults.

Keywords: older adults; senior technology adoption model (STAM); technology adoption model (TAM); trust voice-user interface (VUI).

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Conflict of interest statement

The authors declare no conflict of interest.

Figures

Figure 1
Figure 1
The conceptual framework of this study.
Figure 2
Figure 2
Frequency table of participants’ experience with VUI.
Figure 3
Figure 3
Results of SEM. Note: * p < 0.1; ** p < 0.05; *** p < 0.01.
See this image and copyright information in PMC

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