• 인터넷정보학회논문지
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• 제16권5호
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• pp.93-98
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• 2015

최근 들어서 정보통신기술 자체뿐만 사물인터넷(IoT)을 활용한 비즈니스가 빠르게 확대되고 있다. 일반적으로 사물인터넷 중에서 웨어러블 디바이스는 고객을 대상으로 활용된 분야 중 가장 선도적인 적용분야로 인식되고 있다. 본 연구는 먼저 웨어러블 디바이스의 대표적 응용분야인 활동량 측정기에 대해서 고객의 니즈를 파악하고, 이를 잘 알려진 마케팅 믹스(제품, 가격, 유통, 촉진)와 연계시킨다. 이를 위해서 대학생들을 대상으로 서베이가 수행되었으며, 활동량 측정기의 현재 및 잠재된 니즈를 밝혔다. 또한 이러한 니즈는 마케팅 믹스에 의해서 분류되었다. 활동량 측정기는 다른 정보통신기기와는 달리 잠재된 욕구가 많았으며, 의료기기적 특성으로 인해 유통채널 등도 온라인, 대리점이 아닌 신뢰성을 보장할 직영점이나 오프라인 매장의 선호도가 크다. 본 연구결과는 일반 사물인터넷으로서 활동량 측정기뿐 아니라 웨어러블 디바이스를 개발하려는 개발자와 경영층에게 디자인요소에 관한 새로운 시사점을 제공할 것이다.

• 인터넷정보학회논문지
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• 제20권1호
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• pp.17-24
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• 2019

2016년 세계경제포럼(WEF)에서 4차산업혁명이 소개된 이래 사물인터넷, 인공지능, 빅데이터, 5G, 클라우드 컴퓨팅, 3D/4D 프린팅, 로보틱스, 나노기술, 바이오 공학 등 다양한 분야에서 이런 기술을 활용한 제품과 비즈니스가 빠르게 확대되어 왔다. 사물인터넷 중에서는 웨어러블 디바이스가 최종고객을 대상으로 활용되는 선도적 적용분야로 인식되고 있다. 본 연구의주요 목적은 활동량 측정기에 대해서 고객의 욕구를 파악하고, 이를 마케팅 믹스와 연계시킨 제1차 연구에 기반하여 제2차 연구를 수행하고 이 결과를 제1차 연구결과와 비교하는 종단연구이다. 더불어서 미래 활동령 측정기 개발을 위한 잠재욕구를 파악하는 것이다. 이를 위해서 2018년 5월 대학생들을 대상으로 서베이가 수행되었으며 이용특성에 관한 주요변수에 대해서 ANOVA 등 실증연구가 이루어졌다. 또한 제1차 연구와는 달리 잠재욕구에 대한 분석결과를 단어구름기법을 사용하여 시각화하였다. 제품 가격 유통 촉진 등의 마케팅 믹스에 기반을 둔 종단연구결과에 따르면 현재 활동량 측정기는 도입기에서 성장기로 이전하고 있으며, 마케팅 믹스 각각에 대한 변화를 발견할 수 있었다. 연구결과는 학계뿐 아니라 사물인터넷 기반의 디바이스를 개발하려는 개발자에게 고객의 욕구에 기반 개발과 관련하여 시사점을 제공한다.

• 한국보육지원학회지
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• 제18권6호
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• pp.75-99
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• 2022

Objective: This study aims to explore ways to empirically analyze and manage childcare teachers' job stress based on their relationship with stress-related physiological indicators measured by a fitness tracker. Methods: The study participants were 27 childcare teachers in Gyeonggi-do and wore Garmin's wearable fitness tracker Vivosmart 4 for 15 days for three months. The collected information was analyzed for mean, SD, ANOVA, and correlation using JAMOVI 2.00. Results: First, among the daily changes of physiological indicators measured by a fitness tracker, the data collected on Mondays were significant. On Mondays, the stress index was high, the duration of the rest period was short, and the sleep time was short. The stress of childcare teachers showed a significant negative relationship with the body battery which was calculated by considering the duration of the rest period, heart rate variability, stress, and activity level. Also, the duration of deep sleep was positively correlated with a low degree of stress. There was a significant relationship between the childcare teachers' psychological indicators and the biomarkers measured by fitness trackers. Conclusion/Implications: Stress research using a fitness tracker is big data, and in-depth analysis is possible. Fitness trackers can collect and utilize repeated measurement data for each individual childcare teacher.

• 지식경영연구
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• 제16권3호
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• pp.23-40
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• 2015

최근 등장한 IoT(Internet of Things)는 개인과 기업에게 효율성 및 편의성을 제공해 줄 것으로 예상되는 기술로 주목받고 있으며, 이에 대한 관심과 투자가 점점 증가하고 있다. IoT의 정착은 빅데이터를 생성시키는 환경을 만듦으로써, 빅데이터분석을 통해 사회전반에 걸쳐 효율성을 증대시킬 뿐만 아니라 새로운 서비스 창출의 기반이 될 수 있다. 하지만 일각에서는 IoT 기술이 새로운 가치를 제공해 주는 이면에, 다양한 프라이버시 침해요소가 존재한다고 주장한다. 사용자가 IoT 서비스를 사용할 때 느낄 수 있는 프라이버시 침해에 대한 우려는 장기적으로 사용자의 수용을 저해할 수 있기 때문에, IoT 산업의 빠른 발전속도에 제동을 걸 수 있다. 따라서 본 연구에서는 IoT 환경에서 발생할 수 있는 사용자 프라이버시 침해를 세 가지 측면(기술적 위협, 서비스제공자의 위협, 정책에 대한 신뢰)에서 살펴보고 프라이버시 우려에 미치는 영향 수준을 비교해 보고자 한다.

• International Journal of Knowledge Content Development & Technology
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• 제12권1호
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• pp.7-16
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• 2022

With the proliferation of activity-tracking devices and other smart tools, more users leverage these personal informatics technologies to track their physical and fitness-related activities. The research on the benefits (and limitations) of these devices tends to focus on the use of a single tool, leaving out the interactions among multiple technologies, and how these interactions influence the way users perceive their affordances. Building from an ecological perspective, I extend this research by providing insight into the competitive and complementary relationships among activity tracking devices and other fitness-related and personal informatics technologies within the device ecology of technologies around the user. The affordances of these devices are therefore not enacted in isolation but are relational to understanding of other technological options and differing personal preferences and goals of the user.

• International Journal of Advanced Culture Technology
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• 제8권1호
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• pp.218-225
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• 2020

Purpose Wearable devices are widely used in our daily life. The purpose of this study is to investigate the relationship between persuasive designs of fitness trackers and users' physical activity behavior. Methods To test the research model, data was collected from a web-based survey in China, resulting in an effective sample of 166 usable questionnaires. The survey was restricted only to respondents who wear a fitness tracker. Results The sample surveyed in this study indicated that half of the respondents had been wearing a smart fitness tracker shorter than one year, and only 27% were long-time users (longer than two years). Dialogue support and social support strategies were both proved to be effective in increasing users' workout behavior intention. Social support strategies had a greater effect on behavior change than dialogue support strategies. Conclusion The findings from this study make several contributions to the practice. Wearable devices developers can employ the result from this study to help them design devices, which can persuade people to do more exercises and preserve a healthier life.

• Journal of Information Science Theory and Practice
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• 제8권3호
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• pp.47-63
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• 2020

This study focuses on users of activity tracking technologies and their related information behavior. How useful is the provided information by the trackers? Do users understand all information and explanations? We conducted a web-based survey. All in all, 631 users of a tracking device filled out the survey. From the perspective of information science, this investigation aims to analyze information needs considering different types of the provided information by activity tracking technologies. Are users satisfied by using the information on their steps, heart rates, and sleep duration? How do users assess readability about heart rate zones and sleep stages? Additionally, we investigated if users understand how to reflect on and adapt their health behavior based on the received explanations. According to the results, users mainly agree that the received information (raw data as well as - to a lesser extent - aggregated data in the form of corresponding diagrams) is useful, that the explanations are easy to understand, and that they know how to use this obtained information. This investigation enables an in-depth insight into how users are applying the self-quantifying activity and health information and which information needs are satisfied.

• 지역사회간호학회지
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• 제30권3호
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• pp.257-270
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• 2019

Purpose: This study is designed as a non-equivalent, control group pre/post-test for identifying effectiveness of a workplace walking program using a fitness tracker including individual counseling and tailored text messaging. Methods: Seventy-nine employees from two large companies were allocated into an intervention group (n=39) and a control group (n=40). Participants were asked to wear a fitness tracker (Fitbit Charger HR) during 24-hour, 5-days per week, for 10 weeks. The intervention group was provided with daily walking steps measured by Fitbit, weekly counseling with a specifically designed workbook, and seven weekly text messaging, and the control group with the fitness tracker only. Results: At the week 10 measurement, there were significant differences between the intervention and control groups in physical activity self-efficacy (p<.001), physical activity behavior (p<.001), daily walking steps (p<.001), systolic blood pressure (p=.033), and wellness (p<.001). Conclusion: These results suggest that the workplace walking program using a fitness tracker including individual counseling and tailored text messaging is more effective for persons with 10,000 steps/day. Therefore, it is recommended to actively apply this workplace walking program to inactive employees for encouraging regular physical activities and improving their wellness.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제11권4호
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• pp.2075-2092
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• 2017

Person re-identification is to match pedestrians observed from non-overlapping camera views. It has important applications in video surveillance such as person retrieval, person tracking, and activity analysis. However, it is a very challenging problem due to illumination, pose and viewpoint variations between non-overlapping camera views. In this work, we propose a viewpoint invariant method for matching pedestrian images using orientation of pedestrian. First, the proposed method divides a pedestrian image into patches and assigns angle to a patch using the orientation of the pedestrian under the assumption that a person body has the cylindrical shape. The difference between angles are then used to compute the similarity between patches. We applied the proposed method to real-time global multi-object tracking across multiple disjoint cameras with non-overlapping field of views. Re-identification algorithm makes global trajectories by connecting local trajectories obtained by different local trackers. The effectiveness of the viewpoint invariant method for person re-identification was validated on the VIPeR dataset. In addition, we demonstrated the effectiveness of the proposed approach for the inter-camera multiple object tracking on the MCT dataset with ground truth data for local tracking.

• 한국정보시스템학회지:정보시스템연구
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• 제29권1호
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• pp.201-224
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• 2020

Purpose The study focuses on the physical activity behavior change effect of smart wristband, which is the most popular type of fitness tracker nowadays. The purpose of the research is to investigate how people's workout behavior may change after wearing a smart band and examine what kind of role persuasive design plays in behavior change. Design/Methodology/Approach This research employed an experimental study to examine whether the user's workout behaviors changed after using wristband from the "Behavior Wizard" perspective. A representative smart wristband from a major vendor was selected as the objects of experimental study. In the experiment, by comparing users' workout behavior before and after using the wristband, behavior changes of all the experiment participants were classified into one of the 15 behavior change types. Users perceived persuasive design characteristics were measured and group differences were tested among different behavior change groups. Findings This research found that nearly half of the participants changed their workout behavior while half retained their workout status or no exercise status. Half of the participants who did not do exercise in their spare time started walking in the experiment. Results also showed that participants who started working out perceived higher levels of persuasive design devised into the smart band than participants who preserved no exercise status, except for facilitation and reward strategies. Participants who retained workout and those who increased workout frequency perceived no difference in smart band persuasive design.