When fitness trackers don't 'fit': end-user difficulties in the assessment of personal tracking device accuracy
When fitness trackers don't 'fit': end-user difficulties in the assessment of personal tracking device accuracy
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当健身追踪器不“适合”时：最终用户评估个人追踪设备准确性的困难
DOI：
10.1145/2750858.2804269
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发表时间：
2015
期刊：
影响因子：
--
通讯作者：
M. Ackerman
中科院分区：
文献类型：
--
作者：
Rayoung Yang;Eunice Shin;Mark W. Newman;M. Ackerman
个人跟踪技术允许用户监控和反映他们的身体活动和健康状况。然而，用户不确定他们的设备跟踪数据的准确性有多高。为了更好地了解这一挑战，我们分析了600条产品评论，并对跟踪设备用户进行了24次访谈。在这篇文章中，我们描述了用户使用什么方法来评估他们的跟踪设备的准确性，并确定了他们遇到的七个问题。我们发现，用户的期望、身体特征、活动类型和生活方式的不同，导致他们对设备的准确性有不同的看法。由于缺乏健全的心理模型，对准确性和实验控制的概念理解不清，用户设计了错误的测试，得出了错误的结论。我们提出设计建议，以便更好地支持最终用户努力评估和提高其跟踪设备的准确性，以适应其个人特点和目的。
Personal tracking technologies allow users to monitor and reflect on their physical activities and fitness. However, users are uncertain about how accurately their devices track their data. In order to better understand this challenge, we analyzed 600 product reviews and conducted 24 interviews with tracking device users. In this paper, we describe what methods users used to assess accuracy of their tracking devices and identify seven problems they encountered. We found that differences in users' expectations, physical characteristics, types of activities and lifestyle led them to have different perceptions of the accuracy of their devices. With the absence of sound mental models and unclear understanding of the concepts of accuracy and experimental controls, users designed faulty tests and came to incorrect conclusions. We propose design recommendations to better support end-users' efforts to assess and improve the accuracy of their tracking devices as required to suit their individual characteristics and purposes.