• International Journal of Human Ecology
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• 제5권2호
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• pp.93-110
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• 2004

The purpose of this study is to investigate the money management behavior according to the consumption value for consumers, especially for adolescents. Using 502 samples of middle school adolescents, a survey was conducted from May 10 to May 20, 2004. The main results were as follows: 1) The consumption value for adolescent consumers was categorized conspicuous-consumption value, brand-oriented value, mental-oriented value and advertising-dependent value. 2) Female adolescent, with more private spending money, with mobile phone, with importance on brand when purchasing mobile phone, paying more for using mobile phone, having conspicuous-consumption value, with more importance for brand when purchasing mobile phone and having more advertising-oriented value. Adolescent consumers with less private spending money, less payment for mobile phone and having mental-oriented value. 3) Female, with more educated mother, with less spending private money and having better money management behavior. 4) With less conspicuous-consumption value, more mental-oriented value, adolescent consumers have better for money management behavior.

• 대한인간공학회지
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• 제23권2호
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• pp.105-120
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• 2004

With the new technology and the popularization of mobile phone. the functions and designs of mobile phone have been varied rapidly. However. based on the user's level of familiarity on mobile phone function and knowledge of information technology. the using behaviors of mobile phone. especially between the young users who are well acquainted with the latest function and technology and the over middle-aged users who are relatively not. would be quite different. A survey was conducted to investigate the various using behaviors of mobile phone in different age groups. The total number of six hundred and sixty-seven people from age seventeen to sixty participated in this study. The participants were divided into young group (age between 17 to 29) and the over middle-aged group (age between 40 to 60) to compare the difference group considered design. price. and function of the mobile phone as three important factors. on the other hand. the over middle-aged group considered quality of communication. price and ease of use as three important factors. All the respondents of the young group know how to use the text messaging function. however for the over middle-aged group. 40% of the respondents knows how to use the text messaging function. The over middle-aged group seemed mainly use the mobile phone for voice communication. however the young group had a tendency to communicate each other with short text message rather than through voice conversation. Twenty percentage of young group responded that they had an experience of pain or discomfort at the thumb. the thenar eminence area. or carpus area during pushing the mobile phone keypad. The excessive frequent use of keypad may cause the risk of repetitive strain injury (RSI). The results of this study could provide important information to understand the way of using mobile phone in different age groups. and also could be used to design and market the mobile phone.

• 대한지역사회영양학회지
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• 제22권6호
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• pp.485-494
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• 2017

Objectives: The objective of this study was to develop mobile phone application for image-based dietary assessment and evaluate satisfaction regarding respondent's use of the mobile phone application. Methods: We developed a mobile phone application to assess dietary intakes using 24 hour dietary recall. After initial development, application was reviewed by ten adults and revised based on their comments. We recruited 192 volunteers (92 males, 100 females) to use the mobile phone application and to respond to a satisfaction survey. Participants were instructed to use the mobile phone application with fiducial marker five centimeter in width, length and two centimeter height at each eating occasion during designated 4 days, capturing $45^{\circ}$ angle and $90^{\circ}$ angle images of all food and beverage items before and after consumption. After using the mobile phone application for 4 days, participants were asked to complete an online questionnaire on the satisfaction of the mobile phone app. User satisfaction items composed of 12 questions of application user interface, 8 questions of emotional response, 9 questions of eating behavior in 5 likert scale. Participants were also asked to provide additional open-ended comments on the use of mobile phone application. Statistical analysis was performed by using the SPSS 23.0 (Statistical Package for the Social Science). Results: The average user interface score was $2.82{\pm}1.08$, which was close to the 'normal' response. Responses for emotion and eating behavior also were borderline to the 'normal'. Conclusions: This study found that the mobile phone application using 24-hour recall was acceptable to be used to assess dietary intakes for several days. However, there should be a need for such technology to be user-oriented instead of researcher-oriented. Easy and cost-effective new technology is needed for estimating the amounts of food eaten automatically when the photos are taken.

• 대한산업공학회지
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• 제33권4호
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• pp.402-409
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• 2007

Markov Chains has proven to be effective in predicting human behaviors in the areas of web site assess, multimedia educational system, and driving environment. In order to extend an application area of predicting human behaviors using Markov Chains, this study was conducted to investigate whether Markov Chains could be used to predict human behavior in selecting mobile phone menu item. Compared to the aforementioned application areas, this study has different aspects in using Markov Chains : m-order 1-step Markov Model and the concept of Power Law of Learning. The results showed that human behaviors in predicting mobile phone menu selection were well fitted into with m-order 1-step Markov Model and Power Law of Learning in allocating history path vector weights. In other words, prediction of mobile phone menu selection with Markov Chains was capable of user's actual menu selection.

• 한국산학기술학회논문지
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• 제14권12호
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• pp.6441-6446
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• 2013

스마트 폰 사용자가 증가하게 됨에 따라 스마트 폰은 가장 대표적인 개인화 기기로써 실제 생활에서의 개인의 행동에 대한 정보를 반영할 수 있다. 이러한 행동 정보로는 사용자가 자주 방문하거나 머무는 장소, 사용자가 자주 연락하는 사람, 사용자가 자주 만나는 사람에 대한 정보 등 그 밖에 여러 가지 실제 생활 정보가 반영될 수 있다. 본 연구에서는 사용자 개인의 실생활을 반영한 행동 패턴에 기반을 두고 개인 모델링 방법을 제안한다. 이 방법은 스마트폰 서비스 추천을 위하여 유용하게 사용할 수 있으며, 실험을 통하여 제안하는 방법의 유효함을 확인하였다.

• 유통과학연구
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• 제8권1호
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• pp.5-11
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• 2010

This study addresses a shift, generally positive, in the acceptance and adoption of mobile commerce. The study, based on data collected using a survey questionnaire from mobile phone users in South Korea, examined the relationships using factor analysis and multiple regression analysis methods. The results showed equal positive adoption rates across all demographics of age, education, and income, except for gender, in terms of attitudes toward mobile shopping. The rate of mobile commerce adoption was relatively stronger among females than males. This finding provides new developments to mobile service providers on the effect of demographic profile on consumers'behavior and attitudes toward mobile shopping. Based on the results of the study, practical implications for marketing strategies in mobile commerce markets are suggested.

• 한국IT서비스학회지
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• 제16권1호
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• pp.119-138
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• 2017

Mobile easy payment is a term for using mobile devices to facilitate financial transactions. Mobile easy payment is a quickly emerging practice, supported by the dramatic increase of mobile phone or device users around the world. The purpose of this study is to classify user's group of the mobile easy payment service by their lifestyle based on I-VALS type and to investigate differences in usage behavior among the user groups. For empirical study, a questionnaire survey was carried out with users of mobile easy payment services using the Internet from June 7 to 10 in 2016. We conducted factor analysis for I-VALS, usage factors, satisfaction factors. We also performed cluster analysis for group classification, and analysis of variance, cross analysis to compare the different usage behavior among the user groups. In analysis results, first three cluster appeared including "ICT task-oriented group", ICT positive and socialities oriented group", "ICT leader-oriented group". Second, it was found significant differences among the clusters about factor of "easy of use", "securities", "universality", "satisfaction". Third, we showed that there were significant differences in time first used the service. Based on these findings, we provide practical implications. Results of our study can be expected to provide the basis of differentiated marketing strategy of mobile easy payment services.

• Journal of Communications and Networks
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• 제17권2호
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• pp.100-109
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• 2015

Mobile phone carriers face challenges from three synergistic dimensions: Wireless, social, and mobile. Despite significant advances that have been made about social networks and human mobility, respectively, our knowledge about the interplay between two layers remains largely limited, partly due to the difficulty in obtaining large-scale datasets that could offer at the same time social and mobile information across a substantial population over an extended period of time. In this paper, we take advantage of a massive, longitudinal mobile phone dataset that consists of human mobility and social network information simultaneously, allowing us to explore the impact of human mobility patterns on the underlying social network. We find that human mobility plays an important role in shaping both local and global structural properties of social network. In contrast to the lack of scale in social networks and human movements, we discovered a characteristic distance in physical space between 10 and 20 km that impacts both local clustering and modular structure in social network. We also find a surprising distinction in trajectory overlap that segments social ties into two categories. Our results are of fundamental relevance to quantitative studies of human behavior, and could serve as the basis of anchoring potential theoretical models of human behavior and building and developing new applications using social and mobile technologies.

• 디지털융복합연구
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• 제12권7호
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• pp.189-196
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• 2014

스마트폰 시장이 성장하면서 모바일 애플리케이션 시장은 잠재력 있는 새로운 시장으로 평가받고 있다. 애플스토어 같은 애플리케이션 시장에서 많은 구매자들이 모바일 애플리케이션을 다운로드 받고 있지만, 아직 소비자의 애플리케이션 다운로드에 대한 주요 연구는 없는 실정이다. 그러므로 이 연구는 스마트폰용 모바일 애플리케이션 다운로드에 영향을 미치는 요소에 대해서 연구를 하자고 한다. 앱 순위는 앱 다운로드에 유의한 영향을 미치는 것으로 나타났다. 가격은 유의적인 영향을 발견할 수 없었다. 앱 유형, 개발자 경험, 지역성은 애플 앱스토어에서만 유료앱 다운로드에 유의적인 영향을 미치는 것으로 나타났다. 이 연구가 모바일 애플리케이션 비즈니스 구축 및 모바일 애플리케이션 시장 활성화 전략 기여를 할 수 있을 것으로 기대된다.

• Journal of Information Processing Systems
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• 제7권1호
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• pp.209-220
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• 2011

One of the major factors influencing the phenomenal growth of the smart phone market is the active development applications based on open environments. Despite difficulties in finding and downloading applications due to the small screens and inconvenient interfaces of smart phones, users download applications nearly every day. Such user behavior patterns indicate the significance of smart phone applications. So far, studies on applications have focused mainly on technical approaches, including recommendation systems. Meanwhile, the issue of culture, as an aspect of user characteristics regarding smart phone use, remains largely unexamined throughout the world. Hence, the present study attempts to analyze the highest ranked smart phone applications downloaded and paid for that are ranked the highest in 10 countries (Korea, Japan, China, India, the UK, USA, Indonesia, Canada, France, and Mexico) and we then derive the CDSC (Cultural Dimensions Score of Content) for these applications. The results derived are, then, mapped to the cultural dimensions model to determine the CISC (Cultural Index Score for Country). Further, culturally significant differences in smart phone environments are identified using MDS analysis.