• Title/Summary/Keyword: Capability Evaluation

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Evaluation Method for Measurement System and Process Capability Using Gage R&R and Performance Indices (게이지 R&R과 성능지수를 이용한 측정시스템과 공정능력 평가 방법)

  • Ju, Youngdon;Lee, Dongju
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.42 no.2
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    • pp.78-85
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    • 2019
  • High variance observed in the measurement system can cause high process variation that can affect process capability badly. Therefore, measurement system analysis is closely related to process capability analysis. Generally, the evaluation for measurement system and process variance is performed separately in the industry. That is, the measurement system analysis is implemented before process monitoring, process capability and process performance analysis even though these analyses are closely related. This paper presents the effective concurrent evaluation procedure for measurement system analysis and process capability analysis using the table that contains Process Performance (Pp), Gage Repeatability & Reproducibility (%R&R) and Number of Distinct Categories (NDC). Furthermore, the long-term process capability index (Pp), which takes into account both gage variance and process variance, is used instead of the short-term process capability (Cp) considering only process variance. The long-term capability index can reflect well the relationship between the measurement system and process capability. The quality measurement and improvement guidelines by region scale are also described in detail. In conclusion, this research proposes the procedure that can execute the measurement system analysis and process capability analysis at the same time. The proposed procedure can contribute to reduction of the measurement staff's effort and to improvement of accurate evaluation.

A Study of Statistical Tools Application - Evaluation of Process Capability - (통계적기법(統計的技法) 활용(活用)에 관(關)한 연구(硏究) - 공정능력평가(工程能力評價)를 중심(中心)으로 -)

  • Seong, Won-Yong;Jung, Soo-Il
    • Journal of the Korea Safety Management & Science
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    • v.10 no.2
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    • pp.195-203
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    • 2008
  • The purpose of this study is to develop a guideline of process capability evaluation and to apply this guideline improving the quality of products, especially in the small and medium enterprises. In this study we deal in the concept of process capability evaluation, the calculation of process capability index, and the application of a case study. Man must compare the state of process with the standards in evaluating of the process capability. Control chart can be used as a yardstick for judgement for the long term period and the distribution shape of histogram for the short term period. Man should regard to the significant figure by the calculation of process capability index.

An analysis of the correlation between the fundamental mathematical capability and the reading capability of the elementary 3rd graders (초등학교 3학년 학생의 기초수학 능력과 읽기 능력의 상관 분석)

  • Lee Bong-Ju
    • The Mathematical Education
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    • v.45 no.1 s.112
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    • pp.97-104
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    • 2006
  • The purpose of this study is to extract some suggestions in developing the elementary students' abilities to solve the fundamental mathematical problems by analyzing the degree of the correlation between the fundamental mathematical capability and the reading capability of the elementary 3th graders. In order to achieve this goal, this article analyzed the correlation between the fundamental mathematical capability and the reading capability on the basis of the studying result about the diagnostic evaluation conducted on 20,556 elementary 3th graders by the KICE as a national level basic scholastic achievement evaluation. The coefficient of correlation between the fundamental mathematical capability and the reading capability was .621. As such, it shows that the reading capability plays an important role in solving the fundamental mathematical problems. Particularly, the coefficient of correlation between the corollary arguments and the problem solving ability and the reading capability was the highest among the sub-capabilities of fundamental mathematical capability. In addition, judging from the result that the coefficient of correlation between the practical understanding capability and the solving capability of the fundamental mathematical problems was .528, it informs that the practical understanding capability takes an' important part in developing the fundamental mathematical capability of the elementary students. The results of this study support the hypothesis that the understanding capability plays the very important role in solving the fundamental mathematical problems. In particular, the results suggest that it is necessary that the pupils should be simultaneously supported not only by the capability of the mathematical basis, but also by the reading capability, especially the practical understanding capability about the problems, in order to develop the capability to solve the fundamental mathematical problems.

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Evaluating End-User Computing Capability in Total Perspective

  • Yoon, Chui-Young
    • 한국경영정보학회:학술대회논문집
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    • 2007.06a
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    • pp.357-362
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    • 2007
  • This study presents a methodology that efficiently evaluates and interprets the end-user computing capability in a total perspective in a computing environment. The evaluation system has an evaluation tool, evaluation method and process, and an interpretation system. The validity and reliability of the developed tool construct was verified by factor and reliability analysis with the application of SPSS software. The application and utilization of the developed system was confirmed by applying it to evaluating the computing competency of 316 workers in an enterprise and presenting its evaluation results. This will contribute to developing a methodology for totally evaluating and interpreting the end-user computing capability and improving their computing capability in industrial fields.

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Developing Technology Innovation Capability Evaluation Model for Small and Medium Enterprises (중소기업 육성을 위한 기술혁신역량 평가모형개발)

  • Cho, Joonggil;Lee, Sang-Sun;Byun, Min-Seok;Lee, Jonghwan;Kang, Kyungsu;Lee, Seongbin
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.38 no.1
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    • pp.162-169
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    • 2015
  • In this research, technology innovation capability evaluation model for small and medium enterprises was developed. To develop technology innovation capability evaluation model, two analytic technic was used. First one is AHP (Analytic Hierarchy Process) to give weight to each main index. Second one is fuzzy set theory to represent ambiguous index to numerical value. Finally, technology innovation capability evaluation model was achieved in combination with the same weight to AHP analysis and fuzzy set theory. With these results, small and medium enterprises can know important point in terms of strengthening the innovation capability evaluation.

A Study on Development of Digital Forensic Capability Evaluation Indices (디지털 포렌식 수준 평가 지표 개발에 관한 연구)

  • Park, Hee-il;Yoon, Jong-seong;Lee, Sang-jin
    • Journal of the Korea Institute of Information Security & Cryptology
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    • v.25 no.5
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    • pp.1153-1166
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    • 2015
  • With the acceleration of information digitization caused by fast growth of Information Technology, the application of digital forensics has increased but it is underestimated because digital evidence is easy to forge. Especially, the evaluation of the reliability of digital forensics organization is judged only by judges domestically because there is no objective verification system or evaluation method of the capability of digital forensics organization. Therefore, the evaluation model and indices of the capability of digital forensics concentrated on the digital forensics organization, personnel, technology, facilities and the procedure in domestic justice system was presented in this research after reviewing the domestic and foreign evaluation method and the standard of the capability of digital forensics and information security. The standard for judicial evaluation of digital evidence and composition, management, evaluation of digital forensics organization would be presented based on this research.

A Study on the Weights of Capability Evaluation Model for IT Consultant to Implement IT Consulting Service (IT 컨설턴트의 컨설팅 서비스 역량 평가모형 지표의 가중치 연구 : 정보화 전략 계획 수립 중심으로)

  • Jin, Seung Hoo;Kim, Wanki
    • Journal of Information Technology Services
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    • v.14 no.4
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    • pp.61-80
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    • 2015
  • This paper has explored the analyzing and defining the core competencies of IT consultants who carry out IT consulting projects which desperately are needed by companies to survive in business competitions. Many companies have used IT consultants for their IT projects to achieve their project objectives. The problem of this is the results of IT projects carried out by IT consultants from the recognized consulting firms are quite often criticized by many clients who pay high price for hiring IT consultants. The purpose of this paper is that to weight of capability evaluation model for IT consultants. To define the capability model, I conducted the surveys from the IT professionals by the interview and e-mails. The result of this, this paper defines what core skills IT consultants should have to perform well when they carry out the IT projects. There are 6 major skills and 17 sub skills IT consultants should have in succeeding IT projects. 6 major skills are job competence skill, communication skill, business attitude, vocational values, job performance skill, leadership skill and related 17 sub skill are defined. With the capability evaluation model, the managers who are in the charge of incubating and enhancing the capability of IT consultants in the large corporation and also small, medium companies will utilize their companies' strength to get the advantage on the business competition.

Evaluation of Dredging Capability of Pump Dredger based on Soil Conditions (토질변화에 따른 Pump 준설능력 산정)

  • Park, Hong-Shin;You, Young-In;Kim, Ha-Young
    • Proceedings of the Korean Geotechical Society Conference
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    • 2006.03a
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    • pp.316-321
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    • 2006
  • The Prouductivity of pump dredger varies very much depend on soil conditions is one of the main factors affecting construction period. Therefore the acculate evaluation of dredging capability of pump dredger considering soil conditions is a main task in dredging projects. After assesing the results of pump dredging on several Gwangyang port projects, some data of Japan standard for pump dredger are similar to those of actual results and a pump dredging capability table is prepared for future evaluation purposes.

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A Probabilistic Approach to the Protection Capability Evaluation of Distance Relay in Transmission Systems

  • Zhang, Wen-Hao;Lee, Seung-Jae;Choi, Myeon-Song
    • Journal of Electrical Engineering and Technology
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    • v.5 no.3
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    • pp.407-414
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    • 2010
  • This paper proposes a probability measure for the evaluation of relay performance from two aspects, namely, correct trip and no-unwanted trip. They are developed based on the relationship between relay settings and relay measurements, which follow a Gaussian probability model. The proposed method based on strict mathematical derivation is applied to protection capability evaluation of distance relays under various settings. Considering the specific attributes of each protection zone, the optimal settings are also determined accordingly. The protection capability could demonstrate clearly the relay performance under various settings and the optimal settings could provide good references for engineering applications.

Evaluation for the Cooling Capability of Secondary Cooling Tower in HANARO (하나로 2차 냉각탑의 냉각능력 평가)

  • Park, Yong-Chul;Wu, Jong-Sup;Cho, Yeong-Gurb;Ryu, Jeong-Soo
    • 유체기계공업학회:학술대회논문집
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    • 2000.12a
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    • pp.345-350
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    • 2000
  • The heat produced by the fission in the fuel of HANARO, 30 MW research reactor, is transferred from the primary cooling water to the secondary cooling water through heat exchangers, and the heat absorbed by the secondary cooling water is released into the atmosphere by the 33 MW cooling tower which is a mechanical induced draft and counter flow type. If the outlet temperature of cooling tower exceeds 33 of due to the loss of the cooling tower performance under reactor operation above $50\%$ of the full power, the reactor power should be reduced to half of the full power for safe operation. Therefore, the cooling capability of cooling tower should be maintained for the reactor to be normally operated. To predict the capability of cooling tower for full power reactor operation of 30 MW, the performance test of cooling tower was done at the reactor present power of 24 MW and the capability was respectively evaluated by characteristics and performance curves methods in accordance with the Code of Cooling Tower Institute of U.S.A. to confirm the reliability of evaluation. As a result, it was confirmed, through the results of each evaluation, that the cooling capability of cooling tower meets the design required heat load. Also, the equations of the performance and the characteristics curves of the cooling tower, based on the collected data during this performance test, was obtained for developing the calculation program to predict the cooling capability during reactor operation.

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