• 제목/요약/키워드: conceptual data model

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게임제작 사례를 통한 산학협동 개념모델 (A Suggestion of Conceptual Model of Industrial-Educational Cooperation through Practical Game Development)

  • 은광하
    • 한국게임학회 논문지
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    • 제10권3호
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    • pp.3-13
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    • 2010
  • 본 논문은 산업체에서 활용 가능한 업무 중심의 내용을 기반으로 산학협동에 의한 교육 실습사례 연구를 통해서 '산학협동 개념 모델'을 제안하였다. 제안 모델의 형태를 단계적 프로세스로 표현하기 위해서 게임 제작에 대한 전체 실습 과정을 '산학협동 파이프라인(Pipe-line)'으로 구성하였고 이에 관한 단계별 사례 내용을 기술하였다. 본 논문의 연구목적은 일반적인 산업체와의 산학협동 과정에서 벗어나 실제 학습하는 대상자에게 산업 현장의 제작 프로세스를 직 간접적으로 체험시키는데 중점을 두었으며, 무엇보다도 해당 실습 교수자의 단계별 역할 중요성을 제시하는 산학협동 모델의 제안이다. 이는 향후, 산학협동 관련 교육 실습 및 관련 연구의 참고자료로서 활용 될 수 있다.

A Study on the Interface Design of Preschool Children Educational Course-ware Based on User Experience and TAM

  • Deng, Qianrong;Cho, Dong-min
    • 한국멀티미디어학회논문지
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    • 제25권3호
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    • pp.528-536
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    • 2022
  • The purpose of this study is to help preschool children in the interface design of educational game APP at the psychological level. The conceptual model is constructed through the Technology Acceptance Model (TAM) to explore the perceived usefulness and perceived ease of use when children are playing educational game APP. The empirical study was conducted in the form of questionnaires collected after children used game. The research subjects were 3-6 years old children, and the research tool was the game app. Data collection under the guidance of their parents. The research shows that children educational game experience elements can effectively increase preschool children's psychological perception of educational games. Perceived ease of use also increases trust in educational games for children. The results were as follows: 1. Cronbach's Alpha and KMO were 0.969 and 0.955, and the P value was significant, which passed the reliability and validity test. 2. Through confirmatory factor analysis (Model fit index, Composite reliability, discriminant validity), we found that user experience is closely related to perceived usefulness and perceived ease of use. 3. The path analysis of the relationship proves that perceived ease of use play a key role in trusting preschool children educational game APP.

Exploring the Nature of Volunteer and Leadership and Its Implications for Sport Management

  • Nam-Su KIM;Won Jae SEO
    • Journal of Sport and Applied Science
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    • 제7권2호
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    • pp.53-60
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    • 2023
  • Purpose: This study examines the role of leaders of sport organizations from the perspectives of rank-and-file volunteers. Specifically, the study explores which factors are important in leading volunteers and how rank-and-filers interact with their leaders. Research design, data, and methodology: This study reviews a comprehensive literature on volunteer and leadership theories which are trait theory, behavior theory, and contingency theory. Given the comprehension of prior structure of knowledge on leadership, the study provides a structure of knowledge on volunteer and leadership in sport context and discusses managerial implications for leaders in sport organization. Results: With an exploration of sport leadership, this study proposes a volunteer classification model which presents four-volunteer types: professional volunteer, company volunteer, general volunteer, and school volunteer. Furthermore, this study discussed managerial implications for sport organization leaders. Conclusions: Paid employees may be prepared to accept a job and its requirements mainly due to economic benefits. Volunteers, however, do not pursue economic benefits through their activity. Different types of motivation between paid employees and volunteers bring to surface how a leader influences volunteer effectively. A conceptual volunteer clarification model could be examined in real world situations. Insights for future studies were discussed.

Review of Statistical Methods for Evaluating the Performance of Survival or Other Time-to-Event Prediction Models (from Conventional to Deep Learning Approaches)

  • Seo Young Park;Ji Eun Park;Hyungjin Kim;Seong Ho Park
    • Korean Journal of Radiology
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    • 제22권10호
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    • pp.1697-1707
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    • 2021
  • The recent introduction of various high-dimensional modeling methods, such as radiomics and deep learning, has created a much greater diversity in modeling approaches for survival prediction (or, more generally, time-to-event prediction). The newness of the recent modeling approaches and unfamiliarity with the model outputs may confuse some researchers and practitioners about the evaluation of the performance of such models. Methodological literacy to critically appraise the performance evaluation of the models and, ideally, the ability to conduct such an evaluation would be needed for those who want to develop models or apply them in practice. This article intends to provide intuitive, conceptual, and practical explanations of the statistical methods for evaluating the performance of survival prediction models with minimal usage of mathematical descriptions. It covers from conventional to deep learning methods, and emphasis has been placed on recent modeling approaches. This review article includes straightforward explanations of C indices (Harrell's C index, etc.), time-dependent receiver operating characteristic curve analysis, calibration plot, other methods for evaluating the calibration performance, and Brier score.

A Study on Development of Group Dynamics-based Debate Instructional Model Using a New Technology

  • SUNG, Eunmo;JIN, Sunghee;KIM, Yoonjung
    • Educational Technology International
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    • 제11권2호
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    • pp.77-103
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    • 2010
  • The purpose of this study was to develop an instructional model using new technologies aiming to secure students' learnability and to enhance the public school values in the rural districts. The present study attempts to suggest a practical e-learning instructional and learning model named Group Dynamics- based Debate Instructional Model', which utilizes unique technology environment conditions in most. To develop the model, concepts of group dynamics and debate-based instructional models were reviewed. And in-service teachers in two public schools in a certain rural district were interviewed in order to collect and analyze their needs for a teaching and learning model with which they utilizes unique technology conditions as environment in most. Based on literature review and the need analysis, a group dynamics-based debate instructional model has been suggested in terms of conceptual model. And then expert assessment composing of five in-service teachers from the model schools was implemented twice in order to acquire the suggested model validation, followed by the model validation by a group of experts. Then a revised group dynamics-based debate instructional model has been finally suggested. The group dynamics-based debate instructional model is expected to build up members' affective connection in the process, to generate group value, or collective intelligence, and to establish positive discussion culture. Furthermore, beyond of just utilizing the existing materials, learners are encouraged to develop and collect their own materials and data such as expert's interview, or public news for their argument or refutation. In doing so, learners enhance their learnability as well as accountability, prompting self-directed learning, and establishing appropriate discussion culture resulting in positive learning outcomes.

중학생의 건강위해 행위 및 관련요인에 대한 진단적 연구 -PRECEDE 모형을 근간으로- (A Diagnostic Study on Middle School Students' Health Hazard Behaviors and Influential Variables - Based on the PRECEDE model-)

  • 유재순
    • 한국학교보건학회지
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    • 제15권1호
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    • pp.31-48
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    • 2002
  • The middle school students' health hazard behaviors, health education needs, related to health hazard behaviors and life, were investigated on the basis of the PRECEDE model, for the purpose of a diagnostic research on health education. The data for this study were collected from the sample consisted of the middle school in Chongju for two weeks period in December, 2001. In analyzing the data, t-test, one-way ANOVA and $x^2$-test were done by using SPSS 10.1 for window to compare data between the sexes of the students and grades of the students. A Pearson's correlation analysis was carried out to determine the relationships among the diagnostic variables. The Pearson's correlation between health behavior and life satisfaction was .52, which was significant at the level of P<.01. The Pearson's correlation between drug use behavior and mental health was .40, which was significant at the level of P<.01. The relationships between each diagnosis variable suggested by the PRECEDE model had been experimentally proven to be valid, supporting the conceptual framework of the study as appropriate for assessing the students' health and health education needs. The significance of this research is that it has diagnosed the needs of middle school health education by assessment of factors related to health hazard behaviors and meantal health of the students. The research findings suggest an integrated system of school health education to be contrieved to enhance the effectiveness of the education by strengthening the related factors such as parents' interest to improve the health of middle school students.

한국 대학생의 행복감 개념분석 (Concept Analysis of Happiness on Korean university students using Hybrid Model)

  • 이하나
    • 한국산학기술학회논문지
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    • 제19권11호
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    • pp.357-369
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    • 2018
  • 본 연구는 한국 대학생의 행복감의 개념을 정립하고 정의하기 위해 시행되었다. 연구 분석 방법은 Schwartz-Barcott와 Kim의 혼종 모형(Hybrid model)을 이용하였으며, 자료 수집은 2018년 6월부터 2018년 7월까지 13명의 대상자와 대학생의 행복감과 관련된 문헌으로부터 수집하였다. 본 연구 분석 결과, 한국 대학생의 행복감은 4개의 차원과 8개의 속성으로 도출되었다. 결과적으로 한국 대학생의 행복감에 정의는 다음과 같다. 한국 대학생의 행복감은 (i) 현 상황을 있는 그대로 받아들이며 만족하는 개인의 주관적 만족감, (ii) 사회 경제적 요인과 같은 개인의 객관적 만족감, (iii) 꿈을 향해 나아가기 위한 목표의 성취감, (iv) 미래에 대한 긍정적 인지를 의미한다. 또한 (v) 의미 있는 타인으로부터의 지지를 통한 관계 만족감, (vi) 자신과 의미 있는 타인의 신체 정신적 안위감, (vii) 일상생활의 만족감, (viii) 대학생활의 만족감을 의미한다. 본 연구는 한국 대학생의 행복감의 개념을 정립함으로 한국 대학생의 부정적 정서를 감소시킬 수 있는 전략에 실제인 밑거름이 될 수 있는 자료를 제공했다는데 의의가 있다. 본 연구를 기초로 하여 한국 대학생의 행복감을 증진시키기 위한 프로그램 개발을 제안한다.

조직 기업가 정신이 구성원의 조직몰입과 성과에 미치는 영향: 한국 외식 프랜차이즈 산업 (The Impact of Corporate Entrepreneurship on Employee Commitment and Performance: Evidence from the Korean Food Franchising Sector)

  • 박희현;류용규
    • 한국프랜차이즈경영연구
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    • 제7권2호
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    • pp.5-14
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    • 2016
  • Purpose - Competitive industry structure and recent economic depression challenge a survival of Korean small- and medium-sized food franchising companies (SMFCs), albeit the explosive growth of the Korean food service industry for last few decades. Against this backdrop, it examines how these SMFCs overcome liabilities of smallness and resource scarcity to strengthen competitive advantage in the market. To tackle this, in this article we focus on corporate entrepreneurship and human resources as a knowledge-based asset for these SMFCs. Furthermore, the ratio of employee turnover is high in SMFCs. We view that such brain-drain may result in poor performance of the Korean SMFCs. As such, we pay attention to the role of organizational commitment to an organization as a solution for enhancing individual-level employees' loyalty toward their organization. Research design, data, and methodology - Our research question is to what extent corporate entrepreneurship (i.e., innovative organizational culture, organizational autonomy, and administrative innovation) affects an individual-level attitude toward the organization and, in turn, employee creativity and satisfaction in the Korean SMFCs context. We collected data from employees in SMFCs for three months. A total of 126 valid questionnaires were collected, and analyzed the data using partial least squares path modeling. Results - The reliable and valid measurement model feed into testing the structural model. Our findings suggest that innovative organizational culture and organizational autonomy positively affect employee commitment. Particularly, organizational autonomy has a greater effect than innovative culture on employee commitment. However, the relationship between administrative innovation and employee commitment is not significant. We also find that employee commitment positively affects both employee creativity and satisfaction. Conclusions - Our contribution to the existing franchising business and management literature is twofold. First, the conceptual model includes three antecedents in the organizational entrepreneurship dimension to organizational commitment. Second, we conceptualize organizational commitment as employee commitment, and validate its impact on employee creativity and job satisfaction at an individual performance level. Overall, this article suggests that it is critically important for the Korean SMFCs to develop corporate entrepreneurship in order to facilitate employees' positive attitudes toward their organizations.

정보기술 기반구조의 유연성이 신제품 경쟁우위에 미치는 영향 (The Impacts of IT Infrastructure Flexibility on New Product Competitive Advantages)

  • 정승민;김준석;임건신
    • Asia pacific journal of information systems
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    • 제17권2호
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    • pp.1-28
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    • 2007
  • The success of new product development is a key factor for getting competitive advantages. Marketing research has been investigating marketing capability, manufacturing technical capability, cross-functional integration, market knowledge competence, market orientation, and competitive environment as the key success factors of new product development. Recently, the role of IT infrastructure in enhancing new product advantage is assumed in the literature. However, the empirical studies on the role of IT infrastructure are lacking. The purpose of this study is to empirically exam the impacts of IT infrastructure on new product competitive advantage. In this study, IT infrastructure is conceptualized as the flexibility of IT infrastructure. Based on previous research, a conceptual model is established by incorporating the direct impact of IT infrastructure flexibility and its indirect impact through the key success factors on new product development. To empirically test the research model, data are surveyed from a pair of IS department and Marketing department of 92 consumer goods manufacturers. By employing PLS technique, the measurement reliability and reliability of research variables are tested and the path analysis is conducted to do the hypothesis testing. The path analysis shows that IT infrastructure flexibility has no direct effect on new product advantage, However, the indirect effect of IT infrastructure is found, which is mediated by marketing capability, manufacturing technical capability, cross-functional integration, and market orientation respectively. Hence, The flexible IT infrastructure increases cross-functional integration (H1), market orientation (H3), marketing capability (H5), and manufacturing technical capability (H6). All success factors of new product development excepts for competitive environment have a positive association with new product competitive advantages (from H10 to H14). Finally, the path from IT infrastructure flexibility to cross-functional integration, to market orientation, to market knowledge capability, and to new product advantage is found as the strongest path. These results indicate that the flexible IT infrastructure enhances information sharing with multiple departments and collaboration within a distributed innovation environment. The collaboration among departments positively affects the level of customer and competitor intelligence. The ability to obtain knowledge about customers and competitors makes firms to adapt to a changing environment quickly and to respond to customers' demands adequately. The flexible IT infrastructure also enhances the capability of organization to more rapidly respond to the changes in product design resulting in faster product development and reduced costs. In addition to, it enhances marketing capability by the two-way communications with customers and the analyses of various kinds of customer data. In brief, the finding of this study suggests that the flexible IT infrastructure allows many firms to pursue sustained new product competitive advantages. This study advances research on IT infrastructure in two important aspects. First, by Integrating marketing research and IS research, this study develops a conceptual model on the role of IT infrastructure in enhancing new product advantage. Second, it empirically finds the indirect impacts of IT infrastructure on new product advantage, which confirms the potential for the IS field to contribute to new product development research. The limitations of this study are also discussed to provide research directions for future research.

지역에 대한 인터넷 블로그 정보와 지역 경제경관의 변화 - 서울 북촌을 사례로 - (Impacts of Internet Blog Information on the Economic Landscape of Real Space: Case Study of Bookchon)

  • 이금숙;서위연;채지민
    • 한국경제지리학회지
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    • 제15권2호
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    • pp.206-227
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    • 2012
  • 본 연구의 목적은 정보통신기술의 발달로 인해 급속도로 확장되고 있는 가상공간과 물리적 실재공간 사이의 상호작용 과정을 밝히는 것이다. 이를 위하여 본 연구에서는 가상공간의 하나인 인터넷 블로그에서 이루어지는 실재공간 서울 북촌에 대한 정보와 이 지역 경제경관 변화의 관계성을 분석해 보았다. 특히 이 지역에 대한 인터넷 블로그의 게시물 수 및 정보 검색 수와 북촌지역의 경제경관 변화를 주도하는 음식점 개점수의 변화 사이에 연관성을 찾아보고자 하였다. 또한 설문조사를 통하여 북촌지역에 대한 정보수집 경로와 정보 검색 후 실제 지역 방문으로 이어 지어지는지 여부 등에 대한 행태적 정보를 수집하였다. 설문조사 결과 가상공간과 실재공간의 상호작용 가능성은 매우 명백하게 나타났다. 실제로 많은 사람들이 물리적 실재공간에 대한 정보를 가상공간을 통해 얻고 있으며, 가상공간에서 취득한 정보는 물리적 실재공간 방문에 상당한 영향을 미치는 것으로 나타난다. 특히, 컴퓨터와 같은 정보통신기기를 상대적으로 잘 다루고 인터넷 환경에 노출되는 기회가 많은 젊은 층에서 인터넷을 통한 정보취득 경향이 높게 나타나며, 여성의 경우와 학생과 사무관리직에서 그 영향력이 보다 크게 나타나고 있다. 이러한 분석 결과를 토대로 실재공간과 가상공간의 상호작용에 대한 개념적 모형을 제시하였다.

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