• Journal of Korea Society of Industrial Information Systems
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• v.26 no.5
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• pp.95-111
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• 2021

This paper is a study to check the flow of how addiction to media services has been studied from a long-term perspective, and to identify variables that can be the basis for future addiction research. Researchers noted the addiction of media services in adolescents in particular, and identified a combination of factors depending on the background of the times. Addiction variables were largely aggregated into four properties: adolescent properties, personal properties, media properties, and media-dependent properties. Addiction variables belonging to the attribute were influenced by major media and divided into four periods. During the study period, the frequency of variables was most related to personal attributes, followed by media attributes, adolescent attributes, and media-dependent attributes. Also Individual attribute variables gradually shifted from object-relationship to individual psychological factors. Variants in media attributes were influenced by the introduction and spread of new media. Variations in adolescent and media-dependent attributes have been weak in studies that observe teenagers' motivations for media use or are related to addiction, and no papers have been published since 2020. Although addiction research on media services is important in terms of industry, there has been an emphasis on social aspects, based on the results of this study, we hope to continue to study the variables of service users who can be used in terms of industry.

• Journal of Educational Research in Mathematics
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• v.19 no.4
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• pp.531-543
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• 2009

This study identified what cognitive attributes are required of eighth graders to solve geometrical problems such as 'Recall,' 'Analyze,' 'Justify,' 'Synthesize/Integrate,' and 'Solve Non-routine Problems' by using the cognitive diagnostic theory. The five attributes are proved as the skills for solving the geometric problems. Many students have not fully mastered the attributes of 'Justify' and 'Synthesize/Integrate'. There was high correlation between these attributes. 'Analyze' best predicted the changes in the geometric achievement. And while students with high levels of geometrical achievement have mastered all the five attributes, those in the mid- and low-level range of performance have mastered fewer attributes.

• Review of KIISC
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• v.20 no.5
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• pp.86-91
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• 2010

최근 인터넷에서 취급되는 데이터들은 개인의 프라이버시를 침해할 수 있으므로 암호화 등의 보안기술 도입이 필수적이다. 특히, u-헬스케어 서비스 사용자는 자신의 데이터에 대한 접근 권한을 위임한 사용자에 한해서만 데이터에 접근가능 하도록 하고 상황에 따라 접근 권한을 박탈하는 능력이 필요하다. 이러한 서비스의 접근권한 요구사항에 근거하여 본 논문은 개인정보에 대한 접근 권한을 위임, 철회 가능한 속성기반 암호기술을 소개하고 검토한다.

• Culinary science and hospitality research
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• v.21 no.6
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• pp.312-330
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• 2015

Domestic coffee franchise market in South Korea has been rapidly growing along with developing the global coffee franchises as well as entering domestic franchise companies into the beverage market. Competitions in the markets are getting more accelerated and local franchises and owner-operated coffee shops are losing their market shares gradually as a result. Local franchises and owner-operated coffee shops in Daegu, however, are notable in that they are maintaining the competitiveness in the markets. This is a unique phenomenon, which deserves to be analyzed to identify the successful attributes as a case study. Important Performance Analysis (IPA) method has been employed for analyzing and its gap(i.e., difference between importance and performance) analysis shows that the price and quantity of coffee are the most important differentiating attributes of local and owner-operated coffee franchises in Daegu.

• 한국IT서비스학회:학술대회논문집
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• 2006.11a
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• pp.320-326
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• 2006

지식경영의 기본적인 목적은 조직 구성원간에 효과적으로 지식을 공유 하도록 하는 것이다. 지식 경영에 관련된 많은 연구들은 지식 공유가 필요한 상황 및 지식 공유를 촉진시키는 조직 환경에 집중해왔다. 그러나 조직에 속한 개인들이 누구와 어떻게 지식을 공유하는 것이 가장 효과적인지에 대해서는 충분한 연구가 이루어지지 않았다. 본 연구의 첫 번째 주제는 지식 전달자와 지식 수용자간에 지식을 주고 받을 때 전달되는 지식 속성의 질을 결정하는 요인을 규명하는 것이다. 특히 본 연구는 프로젝트를 수행하는 개인간의 지식 공유에 초점을 맞추고 있다. 본 연구의 두 번째 주제는 지식 속성의 구성과 지식 속성이 지식 효용 및 업무 결과의 물리적 그리고 심리적 측면에 어떠한 영향을 미치는 지를 규명하는 것이다. 본 연구는 기존 연구와 달리 지식 속성의 질을 지식 공유의 성공 여부를 결정짓는 중요 요소로 인지한다.

• Management & Information Systems Review
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• v.34 no.5
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• pp.127-148
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• 2015

The results indicate that direction of online reviews have a significant effect on both information reliability and product attitude. In addition, consumers' shopping experience also shows a moderating effect between the direction of online reviews and the dependent variables. Furthermore, product type also shows a moderating effect on the information reliability, yet not on the product attitude. In clarify the relationship between the satisfaction and success of smart-learning smart learning and learner analyzes the main factors that affect the learning flow results, The smart learning variety of properties, personalization, complexity affects the learning flow variety, personalization, ubiquity affects the interaction, It was analyzed by a useful impact on the learner interactivity and immersive learning outcomes. This gives the implications of the smart learning attributes are important in order to maximize the learning experience for smart learning.

• The Journal of Society for e-Business Studies
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• v.17 no.1
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• pp.137-150
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• 2012

For social demand and technological development, systematic private information management and security guidance have been enhanced; however, the issue of leakage and invasion of private information is shown in many ways. In the management of such private information, the issue of how to protect such information is one of the sensitive key elements. As a criterion to decide the management policy of each property information consisting of private information, this article suggests Dynamic-Security-Level-Measurement for property information. DSLM adopts the variable characteristics of property information as the element of measurement. By applying this method, it is possible to provide information management functions to cope with the changes of each property information security level of an individual actively. It is expected that this will improve the security of previous information management methods even more and also contribute to the improvement of security in integrated systems such as the integrated ID management system and electronic wallet.

• Information and Communications Magazine
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• v.29 no.10
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• pp.55-65
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• 2012

u-헬스케어 서비스는 개인 의료 정보를 다루는 분야로서 단순한 건강 검진 및 치료의 수준을 넘어 생명과도 밀접한 관계가 있다. 개인 의료 정보 속성은 매우 민감하기 때문에 만약 개인 의료 정보가 불법적으로 노출되거나 악용될 경우 단순한 개인 프라이버시 침해뿐만 아니라 생명까지도 위협받을 수 있다. 이러한 이유로 안전한 개인 의료 정보 공유 및 인증방법이 가장 우선시 되어야 하며 보안성을 고려하여 u-헬스케어 시스템을 구축해야 한다. 또한 개인의 건강 정보에 대한 관리를 체계적으로 수행하여 의료 서비스기관에 의한 개인 의료 정보 남용을 방지하기 위해 보안 감사 시스템이 강화되어야 한다. 따라서 본고에서는 u-헬스케어 서비스와 관련된 다양한 보안 취약점 및 최신 정보보호 기술 동향에 관해 알아본다.

• Journal of the Society of Disaster Information
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• v.14 no.2
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• pp.182-193
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• 2018

Purpose: The purpose of the study is to analyze the relationship between travel behavior and urban spatial characteristics in a hierarchical manner. Method: This study analyzed the relationship between traffic patterns and urban spatial characteristics for 83 cities in Korea by using a hierarchical linear model. Results: It was found that the urban spatial characteristics influenced the choice of transportation mode and travel time with personal attributes. However, the degree of influence on the choice of the means and the time required is relatively low through the policy of changing the city attribute, so the policy effect of mobilizing the land use policy for the traffic is theoretically, but the scale is not bigger than expected. Conclusion: In high density or the bigger scale of the city, the mass transportation system is widely supplied and used, but it does not overcome the drawback that it takes more time than the autos.

• Science of Emotion and Sensibility
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• v.15 no.1
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• pp.149-160
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• 2012

The relative effects of individual differences in cultural orientation (individualism vs. collectivism) and locus of control (LOC: internal vs. external control beliefs) combination types on global/local processing were compared by manipulating the compound stimulus types (arrows or letters), and the stimulus-stimulus congruence. The results can be summarized as followings. First, consistent with previous research on global/local processing of the compound stimuli, reaction time (RT) for global stimuli than for local stimuli, and that in the stimulus-stimulus congruent condition than in the stimulus-stimulus incongruent condition was faster. Second, faster RT was found in the compound arrows condition than in the compound letters. Third, individual difference in LOC, rather than that in the cultural orientations, appeared to be related to global precedence effect, when the compound letters were presented. These results indicated that the individual's LOC rather than cultural orientation can increase the size of the global precedence effect, which might be involved in the stage of cognitive analysis than that of feature detection.