• 제목/요약/키워드: conceptual data model

검색결과 695건 처리시간 0.022초

계량모형적 접근방법에 근거한 발전구조론의 연구에 관한 고찰 (A Review on the Theories of Development Structure based on Data-Oriented Model)

  • 박준호;권철신
    • 한국경영과학회지
    • /
    • 제33권2호
    • /
    • pp.153-174
    • /
    • 2008
  • There have been two streams of the studies on development structure : conceptual model approach and statistical analysis approach. But In these days, the latter has been becoming the main approach owing to the development of multivariate statistical methods and statistical packages. In this study, we examine methodologies and results of the leading researches related to development structure based on statistical analysis and propose the future research directions. This analysis would be expected to contribute toward the construction of long-range development policies on each country.

유기농 제품 친숙성, 인식된 가치 및 구매 의도 사이의 관계 : 경험적 연구 (The Relationship between Organic Products Familiarity, Perceived Value, and Purchase Intention : An Empirical Study)

  • 기리쉬
    • 한국유기농업학회지
    • /
    • 제26권2호
    • /
    • pp.203-216
    • /
    • 2018
  • Product familiarity is vital to assess the purchase intention of consumers. In this study, a conceptual model was proposed to investigate the relationship among organic products familiarity, perceived value (measured by quality, emotional, price and social dimensions), and the purchase intention of students. The model was empirically tested using questionnaire survey data collected from 235 university students. The results reveal that organic products familiarity is positively associated with quality, emotional value, price value and social value. On the other hand, emotional value, price value and social value is also positively associated with purchase intention whereas quality shows insignificant relationship with purchase intention. Overall, the result shows students have positive outlook about their intention to purchase organic products.

정보기술 능력이 기업 성과에 미치는 영향 관계 (The Impacts of IT Capability on Firm Performance)

  • 김기문
    • 한국정보시스템학회지:정보시스템연구
    • /
    • 제15권2호
    • /
    • pp.195-226
    • /
    • 2006
  • The purpose of this study is (1) to develop a conceptually integrated model of IT capability comprising hierarchically structured lower capabilities, and (2) to investigate the impacts of IT capability on firm performance. To do this, the study defined IT capability as a third-order factor model and identified three conceptual dimensions of IT capability IT resource integrating capability, IT infrastructure flexibility, and IT personnel expertise. The relationships between IT capability and firm performance are assessed with 243 firm level data using LISREL. The results of confirmatory factor analysis (CFA) demonstrated that the constructs is highly reliable and valid. Further, we found that IT capability not directly but indirectly affects firm performance through the impacts on business processes.

  • PDF

Neural Network을 응용한 연삭가공 트러블 인식.처리에 관한 연구 (A Study on the Grinding Trouble-Shooting Utilizing the Neural Network)

  • 하만경;김건희;곽재삼;송지복;이재경;김희술
    • 한국정밀공학회:학술대회논문집
    • /
    • 한국정밀공학회 1995년도 춘계학술대회 논문집
    • /
    • pp.113-117
    • /
    • 1995
  • Grinding operations is accomplished by rotating a gfinding wheel with lots of random abrasive at high speed, and its object is generally obtained the fanal workpiece surface of high quality as well as the maximization of workpiece removal rate. But, especiallysince grinding operations is related with a large amount of functional parameter, it is actually difficult to therapy that the grinding trouble occurs during the grinding process. Therefore, we trytodesign grinding trouble-shooting system utilizing the back-propagation model of neural network. The conceptual method is produced byidentifying the four parameters derived from the grinding power, and we are design te to the grinding trouble-shooting system on the basis of their data. In this paper, cognition and therapy method tothe grinding trouble which utilizes neural network based four identified models are suggested, and implementation results of computer simulation with respect to the grinding burn and chatter vibration is presented.

  • PDF

소셜커머스 사용자의 지각된 특성이 지속사용의도에 마치는 영향에 관한 연구 (A Study on the Effects of Social Commerce Users' Perceived Characteristics on Continuous Usage Intention)

  • 이영재;홍성표
    • Journal of Information Technology Applications and Management
    • /
    • 제19권4호
    • /
    • pp.61-74
    • /
    • 2012
  • This studies aims to examine the factors that affect continuous usage reliability of social commerce users that has been really active recently based on using EDT (Expectation Disconfirmation Theory) and extended ECM (Expected confirmation Model). With a statistical analysis, this paper suggests a conceptual model, based on the empirical evidence from this study. The result reveal that perceived usage easiness has a positive effect on meeting the expected confirmation and satisfaction. As perceived quality, social influence and price appeared to reflect a positive effect on fulfilling expected confirmation. This implies that users consider perceived usage easiness, perceived quality, social influence and price important in using social commerce persistently and that as their expected confirmation fulfillment and satisfaction increase that leads to further rise in their future intended continuous usage.

Major Predictors of User's Continuance Intention to Provide information: In the Context of Online Community and Social Media

  • Kang, Jae-Jung;Kim, Yoo-Jung
    • 한국컴퓨터정보학회논문지
    • /
    • 제21권2호
    • /
    • pp.113-122
    • /
    • 2016
  • This study investigates how anticipated value(attainment value, intrinsic value, utility value, and reward value) and self-efficacy in providing information have an influence on continuance intention to provide information in the context of online community or social media. We propose a conceptual model for examining the framework for the effect of anticipated value on attitude toward providing information, and the effect of attitude toward providing information and self-efficacy in providing information on continuance intention to provide information. Proposed research model is empirically assessed using the survey data obtained from 221 respondents in Korea. Results show that attainment value and intrinsic value have a significant impact on attitude toward providing information, whereas utility value and reward value are found to be insignificant. In addition, attitude toward providing information and self-efficacy in providing information are positively and significantly related to continuance intention to provide information.

Preliminary Design and Development Framework of Railway Vehicle Simulator for Engineering Evaluation Analysis

  • Kim, Hong-Chan;Kim, Jeung-Tae
    • International Journal of Railway
    • /
    • 제4권1호
    • /
    • pp.5-11
    • /
    • 2011
  • The purpose of the present study is to develop conceptual design of a railway vehicle simulator based on a scaled model. Although the scaled simulator is limited in its ability to manipulate the full dynamics of a full-size railway vehicle, it has been known to have an advantage in that it could provide means of testing the fundamental dynamic behavior within a limited laboratory space and at low operation cost. The present study proposes a design strategy for a simulator so that a small scaled roller rig could be fabricated and operated in laboratory setting based on the design philosophy. The data obtained from experimental testing using a scale model can be used to verify and interpret the dynamic performance of full-scale railway vehicle by applying appropriate non-dimensional analysis.

성공적인 m-Learning 구현을 위한 핵심 요인에 대한 연구 (An Empirical Study on the Critical Factors for Successful m-Learning Implementation)

  • 황재훈;김동현
    • Journal of Information Technology Applications and Management
    • /
    • 제12권3호
    • /
    • pp.57-80
    • /
    • 2005
  • This study defined the notion of general idea on m-learning as based upon e-Learning and mobile internet related literature review and identified the m-Learning distinctive features. Also, this study has searched for factors that are expected to influence the use intended for m-Learning from self-regulated learning, which is acknowledged to be a useful method for learning accomplishment in education field, in order to measure the relationship between learners' motivation and use intention. Then it has empirically validated the conceptual model based on Davis' TAM (Technology Acceptance Model) As a result, self-efficacy, self-determination, interest, contents quality, time management, help seeking, and Peer study are factors affecting Perceived usefulness. Also self-efficacy, self-determination, interest, contents qualify, time management, and peer study are factors affecting perceived ease of use. Finally both perceived usefulness and perceived ease of use are significant factors affecting use intention.

  • PDF

분류시스템 개발과정에서의 협력에 대한 연구 (A Study on Collaboration in Classification System Development Practice)

  • 박옥남
    • 한국문헌정보학회지
    • /
    • 제42권4호
    • /
    • pp.181-199
    • /
    • 2008
  • 본 연구는 실제 분류 시스템 개발자들의 행태를 이해하는 데 그 목적이 있다. 이를 위하여, 협력행태를 중심으로 협력의 유형, 협력에 영향을 미치는 요인, 협력이 분류 시스템 개발에 미치는 영향 등을 조사하였다. 또한 협력에 대한 이해가 분류 교육자, 연구자, 개발자에게 제공하는 의의를 논의하였다. 자료는 문헌조사, 현장인터뷰, 관찰법, 이메일의 방법을 통하여 수집되었다. 본 연구는 이미지 분류 시스템 개발팀을 대상으로 조사하였으며 사회과정모델을 연구의 프레임워크로 채택하였다.

Why do We Share Information? Explaining Information Sharing Behavior through a New Conceptual Model between Sharer to Receiver within SNS

  • Seok Noh
    • Asia pacific journal of information systems
    • /
    • 제31권3호
    • /
    • pp.392-414
    • /
    • 2021
  • Social networking services (SNS) is an indispensable method in order to obtain information of the Internet participants. The study identified three variables of social media communication, sharing culture, and online trust in terms of social capital theory (SCT) and reviewed intention& behavior variables in terms of theory of planned behavior (TPB). The data were collected from 330 samples of SNS user, and were involved, and the research model uses AMOS to make confirmatory factor analysis. The findings confirmed our hypothesis that social media communication, sharing culture, and online trust affect individuals' behaviors to sharing information. This study emphasizes that not only social media communication but also sharing culture to SNS can stimulate information sharing. while previous research has predominately focused on personal cognition or social network, the study examines the integrated influence of communication, culture and trust on information sharing in SNS. In sum, by explicating the unique role of social capital, this paper aims at contributing to the continued development and success of SNS in general.