• Proceedings of the Korean Operations and Management Science Society Conference
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• 2000.10a
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• pp.306-309
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• 2000

최근 통신서비스의 변화추세에 있어서 주목할만한 점은 전통적인 유선전화에서 데이터서비스로 그 중심이 급격히 이동하고 있다는 것이다. 그러나 기존의 데이터서비스의 품질지표체계는 유선전화 위주로 구성된 지표체계에 근거하고 있고, 또한 통신품질의 개념이 사용자의 관점이 아닌 사업자의 관점에서 정의되고 있다는 한계를 가지고 있다. 본 연구에서는 통신서비스에서의 서비스 품질체계에 대한 표준화 동향 분석을 바탕으로 데이터 통신서비스의 품질지표체계 구축에 있어서 고려해야 할 사항과 품질지표체계 구축을 위한 프레임워크를 제시하였다.

• Journal of Korean Society of Transportation
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• v.33 no.4
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• pp.417-429
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• 2015

Evaluation of traffic data quality is a backbone of better traffic information and management systems because it directly affects the reliability of traffic information. This study developed an integrated index for evaluating the quality of archived intelligent transportation systems (ITS) data. Two novel indices including spatio-temporal consistency and severity of missing data were devised and integrated with existing indices such as availability and completeness. An evaluation framework was proposed based on the developed integrated index. Both analytical hierarchical analysis (AHP) technique and entropy method were adopted to derive mixed weighting values to be used for the integrated index. It is expected that the proposed methodology would be effectively used in enhancing the quality of traffic data as a part of traffic information system.

• Survey Research
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• v.5 no.2
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• pp.71-90
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• 2004

The quality of statistics as a product is necessary to increase the competition of the nation. It will also improve the nation. In 2002 KNSO(Korea National Statistical Office) assessed 12 statistics produced by KNSO using 48 statistics quality evaluation indices. However, there are some difficulties in assessing the quality of the statistics correctly and in establishing policies for the improvement of the quality of statistics due to a lack of staff and organizations. Moreover there are insufficient statistics quality evaluation indices comparing main international organizations and developed countries. In this paper, we developed 81 statistics quality evaluation indices by revising and complementing the current indices of KNSO and divided these indices into 7 dimensions. These indices can be classified by dimensions or procedures, and also used according to statistics.

• The Journal of Bigdata
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• v.6 no.1
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• pp.161-178
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• 2021

The importance of 'Big Data' is increasing to the point that it is likened to '21st century crude oil'. For smart city IoT data, attention should be paid to quality control as the quality of data is associated with the quality of public services. However, data quality indicators presented through ISO/IEC organizations and domestic/foreign organizations are limited to the 'User' perspective. To complement these limitations, the study derives supplier-centric indicators and their priorities. After deriving 3 categories and 13 indicators of supplier-oriented smart city IoT data quality evaluation indicators, we derived the priority of indicator categories and data quality indicators through AHP analysis and investigated the feasibility of each indicator. The study can contribute to improving sensor data quality by presenting the basic requirements that data should have to individuals or companies performing the task. Furthermore, data quality control can be performed based on indicator priorities to provide improvements in quality control task efficiency.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.20 no.10
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• pp.107-116
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• 2019

The defense industry has recently been developed for boosting exports of weapon systems. The survey and analysis of the quality level are required to form a relevant policy for expanding the defense industry. Evaluation indices and modeling of the quality level for manufacturers are used to examine the status of internal quality management and quality management system in order to enhance the overall quality level and establish a quality policy in the field of military supplies. There were some restrictions to apply all aspects of the quality level in the previous model. This paper deals with the research and analysis of other types of model for evaluating the quality level, including the model used in the defense field. By enhancing the close link between procedure indices and performance indices, the research and analysis could be conducted objectively and intuitively. The developed and improved model and indices will be used in the next survey of the quality level for manufacturers of military supplies. The survey results will be used to establish effective government quality management policy.

• Proceedings of the Korean Association for Survey Research Conference
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• 2002.11a
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• pp.111-127
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• 2002

As the utilization of official statistics has been recently increased, the necessity of objective quality assessment also has been increased. Since mean square error(MSE) and response rate, which have been considered as representative quality indicators in the past, may have the limits of use, it has been demanded to develop new quality indicators which are able to reflect the various requirements of users. In this paper, regarding sample surveys conducted by governmental agencies, the flow of procedures in statistics production is analyzed using input-output of each procedure. As the result, how to identify and develop quality indicators for each procedure is discussed, with some instances of indicators. Finally, the quality index using the results of quality assessment would be calculated based on a weighting method by the size of deviation of statistical measures.

• Proceedings of the Korean Information Science Society Conference
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• 2012.06b
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• pp.141-143
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• 2012

RFID 미들웨어의 평가를 위한 방법으로서, 테스트 데이터셋을 이용한 시뮬레이션은 일반적으로 사용되는 평가 방법이다. 태그 식별자에 따라 순차생성된 가상 데이터셋이나 랜덤 생성된 데이터셋의 경우 미들웨어의 단순 처리량을 평가하기에는 유용하나 미들웨어의 정확성이나 실행 가능성를 평가하기에는 한계가 있다. 테스트 데이터셋은 실제 리더에서 생성된 데이터셋과 매우 유사하여야 함에도 불구하고, 테스트 데이터셋의 품질 기준이 정의되어 있지 않음에 따라 테스트 데이터셋이 얼마만큼 실제 데이터셋과 유사한 지를 평가하기가 어려운 문제가 있다. 이를 위해 본 논문에서는 RFID 미들웨어의 평가에 사용되는 테스트 데이터셋의 품질을 평가하기 위한 품질 지표를 제안한다. 제안하는 품질 지표는 실제 RFID 리더에 태그가 통과할 때 생성되는 데이터 셋을 기반으로 하여 정의하였으며, RFID 무선 인식의 고유의 특성, 즉 중복성과 불확실성을 수치화해서 표현하는 특징이 있다. 또한 제안한 품질 지표를 실제 RFID 리더를 통해 생성한 데이터셋에 적용하여 비교 검토함으로써 품질 지표의 유용성을 입증한다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2012.07a
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• pp.113-114
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• 2012

게임이 기획, 그래픽, 프로그램의 복합적 기능을 가진 콘텐츠이지만 특별히 수준 높은 그래픽 데이터는 이용자의 만족도, 몰입 등에 긍정적인 영향을 미치는 중요한 영역이다. 그러나 아직 국내외에 게임 그래픽 데이터의 품질을 객관적으로 평가할 수 있는 기준이 마련되어 있지 않다. 이에 따라 본 논문에서는 게임 그래픽 데이터의 품질 평가를 위한 지표를 개발하는 프로세스를 제안한다. 제안된 프로세스는 그래픽 데이터의 품질 평가 영역 추출을 위한 방법과 세부 평가 지표 마련을 위한 평가 항목 추출방법들로 구성된다. 본 연구 결과는 고품질 게임 개발을 위한 품질평가 지표 개발에 적용될 것이며 관련 분야의 품질평가 모델 개발의 참조 모델이 될 것이다. 향후 본 연구는 국내외 게임 그래픽 데이터의 품질평가 표준안 설계 개발로 진행될 예정이다.

• Korean Journal of Construction Engineering and Management
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• v.7 no.3 s.31
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• pp.76-85
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• 2006

Quality is the core competence for customer satisfaction in current competitive business environments. The manufacturing companies regard the quality as the success factor in enhancing competitiveness and foremost concept of the management innovation. But in many cases, the basis for the quality management and the action programs are not prepared yet. In construction industry, normally schedule and cost have priority over quality and the level of overall quality is relatively lower than other industries. This is caused by the vague quality goal and result-oriented management. This study suggests the quality performance indicators for measuring performance objectively, and develops the continuous quality monitoring system based on those indicators. By using this system, the quality improvement can be expected and corporate quality competitiveness can be ensured.

• The KIPS Transactions:PartC
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• v.16C no.6
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• pp.717-724
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• 2009

The most important issue for successful deployment of IPTV service is the service quality. In this paper, we first choose critical quality metrics belonging to each layer of IPTV service transmission architecture and then analyze the relation between the quality parameters. For this purpose, we implement a test network that emulates the most practical environment in which IPTV service is provided and repeat measurements on the test network for the chosen metrics. Based on the analysis result, it is shown that packet losses have greater effect on the video quality of IPTV service comparing to delay and jitter.