• Title/Summary/Keyword: Product Reliability

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A Study on the Fashion Product Description Appeal Type, the Direction and Type of Consumer Replies on Online Shopping Mall (온라인 쇼핑몰 패션 제품 설명 소구 유형과 댓글의 방향성.유형에 관한 연구)

  • Kim, Bo-Kyung;Kim, Mi-Sook
    • The Research Journal of the Costume Culture
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    • v.18 no.3
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    • pp.408-422
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    • 2010
  • The purposes of this study is to investigate the attitudes and value of fashion product description and consumer replies used in online shopping malls, and to examine the differences in the perceived reliability(objectivity, expertise, trustworthiness) preference and purchase intention toward the product as determined by the appeal type (evaluation-sentimental vs. factual-information) of the product description, the direction(negative vs. positive) and type(factual vs. evaluative) of consumer replies for the product in online shopping malls. Data was collected from female college students with fashion products purchase experience at online shopping malls by questionnaire survey (N=424) and analyzed by using frequency analysis, t-test and ANOVA. Results showed that consumers respondents tended to read product description and other consumer replies before purchasing, when shopping for fashion products through an on-line shopping mall. They thought that sellers' product description and the consumers' replies were helpful in making their decision; but, they were also skeptical about product description. Respondents showed higher perceived reliability, preference and purchase intention to the factual-information type product description than the evaluation-sentimental type. Positive consumer replies were more effective in yielding higher preferences and purchase intentions. Factual replies tend to yield higher reliability than evaluative replies.

Development of Reliability Design Methodology Using Accelerated Life Testing and Taguchi Method (가속 수명시험과 다구치 방법을 활용한 신뢰성설계 방법의 개발)

  • Kim, Min;Yum, Bong-Jin
    • Journal of Korean Institute of Industrial Engineers
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    • v.28 no.4
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    • pp.407-414
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    • 2002
  • The inherent reliability of a product is primarily determined in the design stage, and therefore, design engineers should be able to design reliability into the product in an efficient manner. Especially, the product should be designed such that its reliability is robust to various noise factors encountered in production and field environments. The Taguchi method can be effectively used for this purpose. However, there exist only a few attempts to integrate the Taguchi method with reliability design, and in addition, the existing works do not sufficiently consider the robustness and/or the distinction between noise and acceleration factors. This paper develops a unified approach to robust reliability design assuming that accelerated life tests are conducted at each combination of design and noise conditions. First, an experimental structure for assigning not only acceleration but also noise factors is presented. Second, the reliability at the use condition is estimated using the assumed accelerated life test model. Third, reliabilities are transformed into 'efforts' using an effort function which reflects the degree of difficulty involved in improving the reliability. Finally, an optimal setting of design parameters is determined based on the mean and standard deviation of the effort values. The above approach is illustrated with an example of a paper feeder design.

Reliability Growth Modeling in the Vehicles Developement Stage

  • Won Jung;Park, Sukhwan
    • Journal of Korea Society of Industrial Information Systems
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    • v.3 no.1
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    • pp.67-77
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    • 1998
  • Reliability growth testing used to evaluate reliability in the automobile industry have not always been able to correctly address reliability concerns with increased confidence. The demand to confirm to all product performance requirements under various operating environments has added to the complexity of accurately assessin theproduct's reliability in the required development time. In addition, it is often desired to determine the relationship of a product's reliability to cost, development time, design, manufacturability and assembly. This paper presents the methods for reliability growth modeling to evaluate and interpret reliability concerns to support the reliability analysis of automobile assemblies and systems. This reliability growth modeling process is a mechanism to help "build in" reliability during early phases in the vehicle devleopment stage.

Optimal Interval Censoring Design for Reliability Prediction of Electronic Packages (전자패키지 신뢰성 예측을 위한 최적 구간중도절단 시험 설계)

  • Kwon, Daeil;Shin, Insun
    • Journal of the Microelectronics and Packaging Society
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    • v.22 no.2
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    • pp.1-4
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    • 2015
  • Qualification includes all activities to demonstrate that a product meets and exceeds the reliability goals. Manufacturers need to spend time and resources for the qualification processes under the pressure of reducing time to market, as well as offering a competitive price. Failure to qualify a product could result in economic loss such as warranty and recall claims and the manufacturer could lose the reputation in the market. In order to provide valid and reliable qualification results, manufacturers are required to make extra effort based on the operational and environmental characteristics of the product. This paper discusses optimal interval censoring design for reliability prediction of electronic packages under limited time and resources. This design should provide more accurate assessment of package capability and thus deliver better reliability prediction.

Characterization of Dacrotized Bolts (다크로 방식 처리된 볼트의 특성 평가)

  • Yang, Chi-Hoon;Ko, Jeong;Kim, Dae-Yong
    • Journal of Applied Reliability
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    • v.1 no.2
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    • pp.95-108
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    • 2001
  • To enhance the corrosion resistance of a bolt by surface treatment, dacrotization was considered as a substitute for phosphate coating which is widely used for general applications. In this study, comparisons were made among 5 different kinds of surface treatments including dacrotization and phosphate coating with respect to corrosion resistance, adhesion property with painting, and preload when tightened. The result shows that the dacrotized and surface-stabilized bolt is much superior in every aspects studied herein to others. An excellent corrosion resistance and a fairly good adhesion property with painting were achieved in the dacrotized and surface-stabilized bolt. When tightened at the same torque, the amount of preload and its deviation of dacrotized and surface-stabilized bolt were comparable with those of phosphate coated bolt.

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The Effect of Logistics Services, Corporate Image, Product Reliability & Customer Services on Customer Satisfaction and Repurchase Intention in e-Commerce (전자상거래에서 물류서비스, 기업이미지, 제품신뢰도, 고객서비스가 소비자만족과 재구매의도에 미치는 영향)

  • Choi, Soo-Ho
    • Journal of Digital Convergence
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    • v.17 no.6
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    • pp.159-167
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    • 2019
  • This study was done to analyze the effect of logistics services, corporate image, product reliability and customer service on consumer satisfaction and repurchase intention that e-commerce users perceive. The survey was divided into "logistics services, corporate image, product reliability, customer services, customer satisfaction, repurchase intention". As a study result, independent variables such as corporate image, product reliability and customer services were found to affect customer satisfaction. Consumer Satisfaction had an effect on repurchase intention in mediated and dependent variable. In conclusion, in order to increase the repurchase intention in companies that introduced SCM, it was necessary to improve the corporate image, product reliability and customer service to satisfy consumers. Logistics services had not been adopted as an impact on customer satisfaction. We should strive to improve customer satisfaction and repurchase intention by creating a higher level logistics services.

The Novel Concepts for Reliability Technology

  • Ryu, DongSu
    • Corrosion Science and Technology
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    • v.4 no.5
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    • pp.201-206
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    • 2005
  • Starting with the meaning of the word quality, diverse concepts connoted by the term are examined. Instead of a bathtub curve, the desirable shape of a failure rate covering the entire life of a good product, which might be called hockey-stick line, is introduced. From the hockey-stick line and the definition of reliability, two measurements are extracted. The terms r-reliability (failure rate) and durability (product life) are explained. The conceptual analysis of failure mechanics explains that reliability technology pertains to design area. The desirable shape of hazard rate curve of electronic items, hockey-stick line, clarifies that Mean-Time-to-failure (MTTF) as the inverse of failure rate can be regarded a nominal life. And Bx life, different from MTTF, is explained. Reliability relationships between components and set products are explained. Reshaped definitions of r-reliability and durability are recommended. The procedure to improve reliability and the reasons for failing to identify failure mode are clarified in order to search right solutions. And generalized Life-Stress failure model is recommended for the calculation of acceleration factor.

A Study Countermeasures Method of Domestic Small and Medium Enterprise According to Product Liability Law (PL(제조물책임법)시행에 따른 국내 중소기업 대응 방안에 관한 연구)

  • 박주식;성호경;강경식
    • Journal of the Korea Safety Management & Science
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    • v.4 no.1
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    • pp.81-92
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    • 2002
  • The modern society is changed into mass production, complicated circulation society and mass consuming society because of the development of the fast science technology since the occurrence of the industrial revolution. Also, the human life style is changed into the abundant consumption society because of the appearance of the various products. The society change like the above provide comfortable life to us. but We are facing with danger for the bad food, illegal medicines and bad products. So, To solve the danger like the above, The Product Reliability Law be made. The both The enterprise and consumer need The Product Reliability Law to protect one's own interest. The consumer is claiming to use the product of safety of the resonable price and good quality in modern society, So, 1 studied on countermeasures of domestic enterprise to increase the competitive power of the enterprise according to Product Reliability Law

Application of Accelerated Degradation Testing for VFD (Vacuum Fluorescent Display) (VFD(Vacuum Fluorescent Display) 가속열화시험 응용사례)

  • Bae, Suk-Joo
    • Journal of Applied Reliability
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    • v.5 no.4
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    • pp.413-425
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    • 2005
  • As an alternative to traditional life testing, degradation tests can be effective in assessing product reliability when measurements of degradation leading to failure can be observed. This article presents an accelerated degradation testing for vacuum fluorescent displays (VFDs). The accelerated degradation model is based on Arrhenius-lifetime relationship for cathode temperatures. We compare the results between accelerated degradation test and test at normal use condition. Accelerated degradation test for display devices is observed as an efficient method to warrantee product reliability to customers, as well as a tool to save time and costs.

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Evaluating Perceived Smartness of Product from Consumer's Point of View: The Concept and Measurement

  • Lee, Won-Jun
    • The Journal of Asian Finance, Economics and Business
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    • v.6 no.1
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    • pp.149-158
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    • 2019
  • Due to the rapid development of IT (information technology) and internet, products become smart and able to collect, process and produce information and can think of themselves to provide better service to consumers. However, research on the characteristics of smart product is still sparse. In this paper, we report the systemic development of a scale to measure the perceived product smartness associated with smart product. To develop product smartness scale, this study follows systemic scale development processes of item generation, item reduction, scale validation, reliability and validity test consequently. And, after acquiring a large amount of qualitative interview data asking the definition of smart product, we add a unique process to reduce the initial items using both a text mining method using 'r' s/w and traditional reliability and validity tests including factor analysis. Based on an initial qualitative inquiry and subsequent quantitative survey, an eight-factor scale of product smartness is developed. The eight factors are multi-functionality, human-like touch, ability to cooperate, autonomy, situatedness, network connectivity, integrity, and learning capability consequently. Results from Korean samples support the proposed measures of product smartness in terms of reliability, validity, and dimensionality. Implications and directions for further study are discussed. The developed scale offers important theoretical and pragmatic implications for researchers and practitioners.