• 제목/요약/키워드: information reliability

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IDEF1을 이용한 신뢰성 정보 모델 (A Reliability Information Model Using IDEF1)

  • 장중순;안동근;김민성
    • 품질경영학회지
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    • 제25권4호
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    • pp.185-205
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    • 1997
  • Reliability management requires many activities such as conceptual design, detail design, reliability evaluation and analysis, life testing, and environmental screening, etc.. To perform these activities effectively, a lot of information are required : information for failure mechanism, failure modes, part characteristics, and environmental conditions, etc.. These information should be managed to be used effectively and accurately in reliability activities and feedback to product design and manufacturing. This study identified and characterized these information and classified them according to the reliability activities commonly adopted in many manufacturing industries. IDEF1 was used to define and characterize the flow and the relationship of these reliability information and model is proposed which represents the structure of reliability information systems. The proposed model can be used as a basis for developing reliability management softwares.

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Concept of Control of the Reliability of Customs Information

  • Saidov, Abdusobirjon
    • Journal of Multimedia Information System
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    • 제4권4호
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    • pp.295-300
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    • 2017
  • In this paper deals with the problem of modeling customs information and the criterion for controlling its reliability in the process of managing customs clearance of goods is considered. As the main object of the study, the information of the cargo customs declaration, which is submitted to the customs authorities in electronic form for customs clearance of goods, is considered. The main criteria for determining the reliability of customs information, based on the classical methods used by other fields of science, are given.

신뢰성 매뉴얼 개발 및 보급을 위한 수요조사 (An Investigation on the Demand for Development and Propagation of Reliability Manuals)

  • 김명수;이동하;차상원;박창규;오근태
    • 품질경영학회지
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    • 제33권1호
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    • pp.51-63
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    • 2005
  • This paper presents the investigation on the demand of domestic companies for reliability. For persons undertaking reliability tasks of 224 companies, the questionnaire study is made to investigate the importance and necessity of reliability, needs and priorities of reliability manuals, and the appropriate scheme to propagate them by internet and telephone. By analyzing the responses according to fields of industry, types of manufacturing, numbers of employees, and total sales, we obtained the useful informations for developing and propagating reliability manuals.

풍력발전기를 고려한 복합전력계통의 웹기반 온라인 실시간 신뢰도 정보 시스템의 개발 (Web based Online Real-time Reliability Integrated Information System in Composite Power System Considering Wind Turbine Generators)

  • 조경희;최재석
    • 전기학회논문지
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    • 제60권7호
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    • pp.1305-1313
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    • 2011
  • Web based online real-time reliability integrated information system is asked rapidly for more efficiency and demand response in recent. As the utilization of renewable resources has been receiving considerable attention in recent years, the information system requirement is increased. Specially, the reliability information system is more important for implementing the smart grid. This paper describes architecture of the WORRIS(Web based Online Real-time Reliability Integrated Information System) Version 7.0 system that simulates the reliability indices in composite power system considering wind turbine generators(WTG) developed successfully in this paper. And we had simulated the case study using Jeju island power system data.

A Study on the Reliability Evaluation Index Development for the Information Resources Retained by Institutions: Focusing on Humanities Assets

  • Jeong, Dae-Keun;Noh, Younghee
    • International Journal of Knowledge Content Development & Technology
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    • 제9권2호
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    • pp.65-89
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    • 2019
  • This study has the aim of developing an evaluation index that can help evaluate the reliability of the information resources of institutions retaining humanities assets for the purposes of laying out the foundation for providing one-stop portal service for humanities assets. To this end, the evaluation index was derived through the analysis of previous research, case studies, and interviews with experts, the derived evaluation index was then applied to the humanities assets retaining institutions to verify the utility. The institutional information resources' reliability evaluation index consisted of the two dimensions of the institutions' own reliability evaluation index. The institution provided a service and system evaluation index. The institutions' own reliability evaluation index consisted of 25 points for institutional authority, 25 points for data collection and construction, 30 points for data provision, and 20 points for appropriateness of data, for a total of 100 points, respectively. The institution provided service and system evaluation indexes consisting of 25 points for information quality, 15 points for appropriateness (decency), 15 points for accessibility, 20 points for tangibility, 15 points for form, and 10 points for cooperation, for the total of 100 points, respectively. The derived evaluation index was used to evaluate the utility of 6 institutions representing humanities assets through application. Consequently, the reliability of the information resources retained by the Research Information Service System (RISS) of the Korea Education & Research Information Service (KERIS) turned out to be the highest.

소셜 네트워크 서비스에서의 동적 사용자 신뢰도 평가 스킴 (Dynamic User Reliability Evaluation Scheme for Social Network Service)

  • 이창훈;정영만;정재욱;원동호
    • 정보보호학회논문지
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    • 제23권2호
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    • pp.157-168
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    • 2013
  • 소셜 네트워크 서비스는 생산자와 소비자의 구분 없이 모든 사용자가 직접 정보를 생산, 가공, 유통할 수 있는 양방향 미디어이다. 이용자 수가 빠르게 증가하면서 사용자들이 다양한 정보를 획득하고 공유할 수 있게 되었지만 서비스 상에서 신뢰할 수 없는 정보들의 확산으로 인한 문제점이 발생하고 있다. 또한, 개방적 환경이라는 점을 악용하여 사용자의 프라이버시를 침해하고 서비스 및 사용자의 신뢰도를 낮추는 문제가 확산되고 있다. 따라서 민감한 정보는 정보 생산자가 신뢰할 수 있는 사람에게만 전달될 수 있어야하고, 신뢰할 수 있는 사람으로부터 정보를 제공받아야한다. 이러한 필요성으로 인해 사용자의 신뢰도를 평가할 수 있는 효율적인 방법이 필요하다. 본 논문에서는 서비스에서의 신뢰를 정의하며, 서비스의 기능을 활용하여 Trust Parameter를 만들고 사용자의 신뢰도를 평가할 수 있는 동적 사용자 신뢰도 평가 스킴을 제안한다. 그리고 제안한 신뢰도 평가 스킴에 대한 분석을 통해 사용자들의 신뢰도에 대한 신뢰 범위를 도출한다.

Bayes Estimation of Stress-Strength System Reliability under Asymmetric Loss Functions

  • Hong, Yeon-Woong
    • Journal of the Korean Data and Information Science Society
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    • 제14권3호
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    • pp.631-639
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    • 2003
  • Bayes estimates of reliability for the stress-strength system are obtained with respect to LINEX loss function. A reference prior distribution of the reliability is derived and Bayes estimates of the reliability are also obtained. These Bayes estimates are compared with corresponding estimates under squared-error loss function.

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Modelling A Relationship Between Reliability and Software Coverage

  • Park, Joong-Yang;Kim, Young-Soon;Park, Jae-Heung
    • International Journal of Reliability and Applications
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    • 제4권3호
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    • pp.131-139
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    • 2003
  • There is a new trend of incorporating software coverage metrics into software modelling. This paper proposes and empirically evaluates a software reliability growth model, which relates reliability to coverage. The proposed model is derived by modifying the assumptions on which Veevers and Marshall model is based.

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Satisfaction, Reliability, and Word-of-Mouth Intention for Online Information According to Cosmetic Consumer Information Search Types

  • Shin, Saeyoung
    • 패션비즈니스
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    • 제23권6호
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    • pp.49-63
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    • 2019
  • The purpose of this study was to determine the satisfaction, trust and word-of-mouth intention of online information according to the type of information search by female cosmetics consumers in their 20's to 40's. For this study, online and offline surveys were conducted by 307 people. Factor, correlation, and multiple regression analysis were used to analyze the data. The main results are summarized as follows. First, the cosmetic consumer's information search types were identified as active, playful, and economic information search types. Second, the results of examinations on the effect of consumer information search types on satisfaction, reliability, and word-of-mouth intention of the online information searches showed that the active information search type had a positive effect on satisfaction, reliability, and word-of-mouth intention. The economic information search type had a positive effect on satisfaction. The active information search type was confirmed to have high satisfaction, reliability, and word-of-mouth intention for the provided information and thus, the acceptance of the provided information was high. The playful information search type was divided into continuous, habitual, and independent information search and a tendency to assign a low value to consumer information was confirmed. The economic information search type showed high satisfaction with the information obtained by searching, but also a passive attitude toward trust or word-of-mouth intention and was categorized as a passive search type. Online information search is a communication channel with a great influence that can provide various benefits to cosmetic consumers.

Bayesian Reliability Estimation for the Rayleigh Model under the Censored Sample with Incomplete Information

  • Kim, Yeung-Hoon
    • Journal of the Korean Data and Information Science Society
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    • 제6권1호
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    • pp.39-51
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    • 1995
  • This paper deals with the problem of obtaining some Bayes estimators of Rayleigh reliability function in a time censored sampling with incomplete information. Using the priors about a reliability function some Bayes estimators are proposed and studied under squared error loss and Harris loss.

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