• Journal of Digital Convergence
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• v.12 no.8
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• pp.219-227
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• 2014

Ethernet, ATM, and CAN are wide-utilized communication protocols for information transfer by internet. Many researches about Network Time-delay have been based on network modeling. But almost of them have not shown an optimal solution in various communication environments. So, asynchronous sample system modeling based internet is needed to be robust in various network environments. Also as closed loop system in internet has a different operational characteristics and noise characteristics comparing with conventional control system, new robust control method is needed in instruments which demand to be safe and precise for internet environments. In order to achieve the safe and precise real-time control in remote plant, this paper is aimed to analysis the transfer characteristics and time-delay of control system in cluster web server.

• Journal of Digital Convergence
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• v.11 no.12
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• pp.275-285
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• 2013

As the world economy has been changed into the knowledge-based society, all economic activities have globalized and intensified competition in the marketplace, and the forces of these changes are even more aggressively pressuring today's business. According to many businesses are focused on the core competence and various functions are outsourced by service providers, many firms pay heavily attention to business service. Although the importance of business service, domestic business service industry shows a low labor productivity. On the other hand, foreign business service companies in korea take a substantial portion of business service market. Thus, domestic business service needs to increase a competitiveness because of potential growth opportunities. This study attempts to find out the ripple effect of business service industry on other industry.

• 한국디지털정책학회:학술대회논문집
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• 2005.06a
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• pp.107-143
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• 2005

Mobile service that geography, position by development of space Information Technology and technology of communications, space are various to us now becoming limelight as point contents and infra information that customers do demand based on radio superhigh speed authentication net on highly information society by offer infringement problem about individual's privacy or information by political and scientific interest be injured. Purpose of this study grasps use factor of LBS application Mobile service, and it is that analyze actual proof through questionnaire to grasp whether some relation is with value and action determination that is felt of LBS application Mobile service. Distributed all question of 190 copies but disk floret inclination did valid data 171 that clear question and omission remove a lot of questions by type of study among questionnaire of collected 182 wealths. Analyzed factor analysis and authoritativeness to search validity and confidence of questionnaire and used single regression analysis and multiple regression analysis for hypothetical verification. According to verification result, Mobile service that apply position base service usefulness and system quality, adaptedness of Mobile service that apply position base service by leading person affecting in use, acted for connection healthy and felt value is important factor immediately. Usability and social effect, felt expense, privacy did not appear by leading person that keep in mind in this study. Is been related with step that Mobile service that apply position base service is placed. That is, as present childhood, a person who have experience that use service to look for friend is few and usability fairly in last in wide application boundary and this very important person was removed finally in model. This study has sense in terms of study systematically about LBS application service use leading person that is getting into the spotlight worldwide among Mobile service that is injured newly.

• Journal of Digital Convergence
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• v.10 no.5
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• pp.215-222
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• 2012

A smart phone has functions of both telephone and computer. The wide spread use of smart phones has sharply increased the demand for mobile commerce. The smart phone based mobile services are available anytime, anywhere. In commercial transactions, a digital signature scheme is used to make legally binding signature to prove both integrity of commercial document and verification of the signer. Smart phones are more risky compared with personal computers on the problems of how to protect privacy information. It's also easy to let proxy user to authenticate instead of the smart phone owner. In existing password or token based schemes, the ID is not physically bound to the owner. Thus, those schemes can not solve the problem of proxy authentication. To utilize the smart phone as the platform of mobile commerce, a study on the new type of authentication scheme is needed where the scheme should provide protocol to get legally binding signature and not to authenticate proxy user. In this paper, we create the mobile ID by using both the USIM and voice template of the smart phone owner. We also design and implement the user authentication scheme based on the mobile ID.

• Journal of Digital Convergence
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• v.16 no.5
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• pp.445-454
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• 2018

The purpose of this paper is to present the direction of emotional lighting design of a new concept suitable for the user's living environment based on the experiment and the result of the recognition of the cognitive effect of the color of the lighting on the user's sensibility. As a research method, we collected meaningful results of color temperature and emotion of light through literature research and experimented with users in their twenties. Based on this, we presented the design direction of emotional lighting. As a result, we designed emotional lighting that can transform the shape of the four joints freely to realize the user's demand. We also derive the color temperature of light that can be optimized for the user's work and environment, Concentration, mood, and relaxation. The result of this paper is meaningful and worthy of suggesting emotional lighting design with user - oriented new perspective, deviating from previous method of planning lighting.

• Journal of Digital Convergence
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• v.16 no.5
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• pp.75-84
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• 2018

The purpose of this study was to analyze the regional distribution of the number of social welfare facilities per 100,000 population by using the concentration index(CI) and to evaluate the relationship with the local welfare environment. The results of the analysis are as follows. First, the distribution of social welfare facilities between urban and rural area were distributed in rural areas. And concentration of rural area was gradually decreasing. Second, the concentration index of the social welfare institution was calculated as the negative index. Therefore, social welfare facilities are concentrated in rural areas. However, the absolute value of concentration index decreased. Finally, there are many social welfare facilities in areas with poor economic conditions, low incomes, low welfare budget input, and poor social demolition indicators. In the future, the relationship between inequality of regional distribution of welfare resources and the relationship between local welfare environment should be continuously monitored.

• Journal of Digital Convergence
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• v.16 no.9
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• pp.359-364
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• 2018

The purpose of this study is to investigate the phenomenon of users' experience of O2O transportation service - focus on the Kakao taxi. As a research method, first case study investigated characteristics of taxi app service in Korea and overseas O2O transportation service. Secondly, we conducted an in - depth interview with eight Kakao taxi users to understand the experience of using the taxi. As a result, we were able to derive two points that needed improvement. Firstly, the imbalance between supply and demand should be improved. Secondly, users should not be disadvantaged by the location disclosure. It is significant that this study suggests ways to improve domestic O2O transportation service through a taxi. It is expected that the follow up study will help improve the domestic O2O transportation service and improve the user experience.

• Journal of Digital Convergence
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• v.12 no.1
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• pp.531-537
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• 2014

As Fashion becomes more important in the field of fashion styling and fashion stylists' roles, there has been a strong demand for more unique and stylish fashion. Under these circumstances, the fashion stylist has upgraded the fashion industry as an expert in various fields. The fashion stylist's roles include creation of a fashion image depending on circumstances, improvement of contributionsto product awareness and advertisements by inspiring curiosity and interest from customers and promotion of purchase behaviors. In addition, the fashion stylist should be able to create appropriate attire and hairdos for models in fashion magazines depending on the theme and concept of the fashion and have keen insight, fashion sense and appropriate analyzing and planning skills to follow current trends. This study has investigatedthe field of fashion styling, which has emerged recently and fashion stylists' roles. It appears that fashion styling could develop into a high-growth, high value-added industry as a professional occupation that helps customers have an appropriate fashion sense.

• Journal of Digital Convergence
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• v.14 no.10
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• pp.423-430
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• 2016

The purpose of this paper is to explore and analyze design of USATODAY.COM aimed at being helpful for Chinese online news industry to search for the way forward. USATODAY.COM which converges print and online newsrooms is regarded as a pioneer in the online communication media. It engages interaction with users and their demand, and provides the best level of website and service design. This paper conducted through both theoretical works and design analyses by randomly visiting USATODAY.COM from May 23 to June 5, 2016. USATODAY.COM maintains consistent and high quality of a visual identity system on its homepage, and it is strongly linked to that of USA TODAY. Also, USATODAY.COM provides unique content provision methods, interactive features, advertisement and payment functions through service design considering the user experiences and needs. Based on its results, it is expected to contribute to Chinese online newspaper market which has an astonishing chance to grow.

• Journal of Digital Convergence
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• v.14 no.10
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• pp.553-561
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• 2016

This research focuses on the modern social phenomenon on child education which still, heavily focuses on knowledge transfer where in the past, traditional society emphasized its focal point on character education. At this, character education plans from various angles have been performed. However, the timely request for character education is becoming more desperate in demand. Therefore, the research has contemplated on Sohak, which was the foundation of character education in Korean traditional education, and recognized necessity to review its modern values as the convergence era has approached our society. Modernization of Sohak's teachings to approach modern issue of character education in our society will hold significant value because of its creative inheritance of psychological values and culture to children from the traditional society.