• 디지털융복합연구
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• 제8권4호
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• pp.177-184
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• 2010

모바일 환경에서 사용자들은 실시간으로 언제 어디서나 스마트 폰 서비스를 이용할 수 있을 뿐만 아니라 사용자의 상황에 적합한 정보를 제공받을 수 있다. 이러한 스마트 폰 서비스의 고유한 특성을 반영한 학계의 연구가 부족한 실정임을 감안하여 본 연구에서는 스마트 폰 서비스의 특성들과 사용자 특성에 관해 탐색적 연구를 수행하였다. 연구결과 스마트 폰 서비스 특성과 사용자 특성을 분류하면 다음과 같다. 스마트 폰 서비스 특성은 즉시접속성, 상황 의존성으로, 스마트 폰 사용자 특성은 사용자 친숙도, 사용자 혁신성, 그리고 스마트 폰 기술 특성은 보안성, 연결성으로 분류되었다.

• 산업경영시스템학회지
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• 제36권2호
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• pp.39-48
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• 2013

The development of mobile communication technology is transforming the market of mobile communication devices, which is used to be merely for simple communication, into the one which offers features of personal digital assistant (PDA), fax communication and Internet access. Unlike a mobile phone which comes out as a complete package and whose functions cannot be changed, a smart phone can be upgraded by its user, adding or removing apps as he pleases. OS's of smart phones are iOS-based Apple, Google Android, Window Mobile, and others. Due to its convenience and powerful features, many people use smart phones its high price. On the other hand, consumer complaints are rising on poor A/S for occasional malfunction. This study analyzes how A/S cases can be classified into groups according to quality factors. We evaluate factors such as consumer impression and consumer satisfaction. By dual quality evaluation using KANO method, we would like to show the different A/S strategy for smart phones, compared with mobile phones.

• Journal of Information Technology Applications and Management
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• 제23권3호
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• pp.49-59
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• 2016

Rapid technological advancements and widespread adoption of smart phones in recent years provide students with new opportunities for getting knowledge and making researches in innovation century. As the penetration of smart phone devices in education increases, there is a large growth in the use of these devices especially among the youth. In spite of increasing importance of smart devices in education, the significant features of these technology devices for general learning have not been experientially addressed. In this study we are going to investigate the comparison of smart phone devices and find the necessary conditions for using mobile devices as an educational tool by a conjoint method. There will be five attributes: screen size, batter type, mobile OS, memory capacity and price. By surveying we got the results which showed us the respondents' desire of using specific smart phone; thus, we defined that screen size attribute is the most important device characteristic.

• 한국컴퓨터정보학회논문지
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• 제22권9호
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• pp.65-71
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• 2017

This paper proposes a smart phone authentication method based on user's behavior and habit that is an authentication method against shoulder surfing attack and brute force attack. As smart phones evolve not only storage of personal data but also a key means of financial services, the importance of personal information security in smart phones is growing. When user authentication of smart phone, pattern authentication method is simple to use and memorize, but it is prone to leak and vulnerable to attack. Using the features of the smart phone pattern method of the user, the pressure applied when touching the touch pad with the finger, the size of the area touching the finger, and the time of completing the pattern are used as feature vectors and applied to user authentication security. First, a smart phone user models and stores three parameter values as prototypes for each section of the pattern. Then, when a new authentication request is made, the feature vector of the input pattern is obtained and compared with the stored model to decide whether to approve the access to the smart phone. The experimental results confirm that the proposed technique shows a robust authentication security using subjective data of smart phone user based on habits and behaviors.

• International Journal of Computer Science & Network Security
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• 제21권11호
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• pp.89-96
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• 2021

This work is an extension of my work presented a robust and economically efficient method for the Discrimination of four Mung-Beans [1] varieties based on quantitative parameters. Due to the advancement of technology, users try to find the solutions to their daily life problems using smartphones but still for computing power and memory. Hence, there is a need to find the best classifier to classify the Mung-Beans using already suggested features in previous work with minimum memory requirements and computational power. To achieve this study's goal, we take the experiments on various supervised classifiers with simple architecture and calculations and give the robust performance on the most relevant 10 suggested features selected by Fisher Co-efficient, Probability of Error, Mutual Information, and wavelet features. After the analysis, we replace the Artificial Neural Network and Deep learning with a classifier that gives approximately the same classification results as the above classifier but is efficient in terms of resources and time complexity. This classifier is easily implemented in the smartphone environment.

• 디지털콘텐츠학회 논문지
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• 제14권3호
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• pp.291-301
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• 2013

본 연구는 LTE 스마트폰의 수용에 영향을 미치는 요인을 도출하기 위한 연구이다. LTE 스마트폰의 수용에 영향을 미치는 요인을 살펴보기 위해 확장된 기술수용모델을 사용하였으며, 변수는 선행연구를 고찰하여 LTE의 특징변수와 개인적인 특징에 관한 변수를 선정하였다. 본 연구는 설문조사를 통해 이루어졌으며, 설문대상은 LTE 스마트폰의 주 사용자 층을 감안하여 20대를 위주로 분석하였다. 연구결과, LTE 스마트폰의 수용에 영향을 미치는 요인은 개인의 혁신성, 속도, 가격 요인으로 나타났다. 본 연구결과를 토대로 향후 마케팅 전략을 입안함에 있어 속도뿐만이 아닌 개인의 혁신성 및 가격에 관한 사항을 자극할 수 있는 요소가 추가되어진다면 더욱 의미 있고 효과적인 마케팅 결과를 도출할 수 있으리라 판단된다.

• 품질경영학회지
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• 제44권4호
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• pp.951-963
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• 2016

Purpose: This study was conducted to analyze the potential customer's satisfaction for the concepts of smart audio features and utilize the results when developing the customer-oriented products. Methods: 16 different features were derived via the market research and professionals' interviews. The most satisfactory features were selected through "Kano model", the relative importance of Customer Satisfaction Coefficient, and respondents' preferences from 339 valid survey answers. Results: 15 out of the 16 features were categorized as attractive attribute. "'User Recognizing' and 'Strengthen Linking' groups", such as Auto connection with Smart-phone music player, Synchronization of TV & Audio, and Volume control situational awareness, were shown to provide higher satisfactions to those potential customers. On the other hand, Group 'Integrating Function', such as Aromatherapy and Auto lighting reaction, was shown to be relatively least preferred features. Conclusion: This study enabled which features could lead to the customer satisfaction. Nevertheless, it still requires extensive analyses in different countries and diverse cultures to target the global market. The audio product planners and R&D professionals are expected to learn useful information from such studies.

• 한국콘텐츠학회논문지
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• 제12권1호
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• pp.379-385
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• 2012

본 연구는 최근 들어 급속히 보급이 확산된 스마트폰을 이용하여 이를 치료실과 기공소간의 정보공유체계와 연계 활용하는 방안을 제시하는 것이 목적이다. 이를 위해 최근 모바일 플랫폼 기반의 개발환경을 소개하고 안드로이드 기반의 환자정보 공유체계의 주요 기능을 정의하여 이를 사용자 인터페이스의 설계를 통해 구현 하였다. 이를 실무에 적용한 결과 다음과 같은 결과를 얻을 수 있었다. 1. 스마트폰 등 현재 이슈가 되고 있는 정보화 기반기술을 치기공계에 적용할 수 있는 가능성을 제시하였다. 2. 환자의 구강에 대한 영상촬영 시 카메라와 PC를 연결하여 전송하는 프로세스를 개선함으로서 치료 실내의 정보 활용성이 개선되었다. 3. 환자의 구강정보는 촬영 즉시 서버로 전송되므로 영상화일의 오류를 저감할 수 있었다. 4. 임상에서의 보철물 제작 시 스마트폰에 보철물 이미지를 표출한 상태로 작업함으로서 작업의 효율성이 개선되었다.

• 한국안전학회지
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• 제35권5호
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• pp.74-85
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• 2020

Smart phone zombie or Smombie means pedestrians who walk without attention to their surroundings because they are focused upon their smart phone. Because the traffic accidents and injuries caused by Smombie have been increased rapidly in recent years, the social attention and policies are needed to prevent it. This study was conducted to analyze Smombie's current status and some solutions used before and to propose new improved method through the latest ICT trend. In this study, we did the field survey to check Smombies at several places in Seoul through people counting, and found that a lot of pedestrians still use the smart phone while walking. And we analyzed many case studies about some solutions to prevent Smombies previously. The case studies include legal regulations, government policies, smart phone app services and facilities that are used before. We studied them through internet searches and reference studies and we also checked the current operating situation as visiting several places that the solutions actually has been operated. Therefore, we found there are some limitations in previous solutions in terms of effectiveness and management. To consider new solution that can be expected to overcome the limitations, we analyzed the latest ICT trends focused on features to utilize the Smombie prevention, especially video recognition and digital signage. In these days, video recognition has been developed rapidly with assistance of AI technology and it can recognize the specific pedestrian's characteristics such as holding smart phone as well as hair style, clothes, backpack and etc. On the other hands, the digital signage is the convergence device that includes big display, network connection and various IoT sensors. It can be used as public media in many places for public services as well as advertising. Through these analysis results, we show the requirements and the user scenario for the improved method to prevent Smombie. Finally, we propose to develop R&D technology to recognize Smombie exactly as pedestrian attributes and to spread creative contents to increase pedestrian's interest and engagement for Smombie prevention through digital signage.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2012년도 춘계학술대회
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• pp.380-382
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• 2012

현대 사회에서는 많은 분야에 스마트 폰이 활용되고 있다. 따라서 개인 개발자 또는 회사에서 스마트폰 어플리케이션을 개발하고, 재난 정보 시스템과 재난 방지 서비스를 활용하고 있다. 재난 정보를 아이폰 애플리케이션을 통해 이용하는 것은 아직까지 드물다. 그리고 기존의 아이폰 애플리케이션은 단지 매우 제한된 양의 기능을 가지고 있다. 따라서 사용자들에게 강력한 재해 정보 수집이 가능한 아이폰 어플리케이션과 GIS 기반 서비스가 매우 필요하다.