• 시스템엔지니어링학술지
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• 제8권2호
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• pp.19-25
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• 2012

As modern weapon systems have evolved into embedded software systems, the capability to develop, install, and maintain high-quality software products is becoming increasingly valuable in today's competitive aerospace and defense industry. It is desirable, especially for government-contracted projects whose end-users are military personnel, that specific types of software quality elements are assured early during product development; namely, functionality and usability. Motivated by this need to approach improving software quality from a user's perspective, this paper presents a case study that analyzes system-level software integration testing results for a weapon system indigenously developed in the Republic of Korea. Quantitative data, such as software defect ratios and configuration change rates, are computed to observe meaningful trends with respect to functionality - represented by tests designed to verify the system's electrical signal interfaces - and usability, which is evaluated in terms of how often the initial human-computer interface had to be re-designed. Insights gained from these exercises are subsequently presented as a set of "lessons learned" to take into account when developing new software items for complex weapon systems.

• 한국잠사곤충학회지
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• 제25권2호
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• pp.65-68
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• 1984

최근, 우리나라가 외국산견을 수입하여 기계검정한 성적을 비교 분석한바 다음과 같은 결과를 얻었다. 1) 원료견의 성상이 고르지 못한데 특히 선제견비율과 건견생사량비율에서 심한 변동을 나타내었다. 2) 상위등급의 원료견을 수입하지 못하고 D,E격의 하위등급견이 수입되었으며 가격이 높은 편이다. 3) 상위격의 원료견을 수입하는 것이 향후 우러나라 견제품의 고급화를 피하리라고 본다.

• 비파괴검사학회지
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• 제17권2호
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• pp.108-113
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• 1997

현재 널리 사용되고 있는 비파괴검사중의 하나인 초음파탐상검사(ultrasonic testing)는 교량, 발전소, 석유화학프랜트 및 중공업분야 등에 사용되는 각종 구조물의 사용전 중검사에 폭넓게 응용되고 있으며, 구조물의 안전관리와 품질관리에 필수적으로 요구되고 있다. 또한, 이들 구조물에 존재하는 결함에 대한 정량적 평가 및 검사 데이타의 해석에 많은 연구가 진행되고 있다. 기존의 초음파탐상검사에 사용되는 휴대용 초음파탐상기의 단점을 보안하기 위해 컴퓨터 내장형 초음파탐상기가 선진국에서 개발되고 있으며 다양한 소프트웨어의 사용에 따른 검사 신뢰도가 향상되고 있다. 본 연구는 컴퓨터 내장형 초음파탐상기를 구성하고, 이를 콘트롤할 수 있는 프로그램, 검사 결과의 저장 및 신호 처리 해석이 가능한 소프트웨어를 개발하였다.

• 품질경영학회지
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• 제46권3호
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• pp.539-550
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• 2018

Purpose: The purpose of this study was to find meaningful patient groups of disease using foreign patients data and analyze implemented test of the patient groups. Methods: The data was collected by foreign patients' EMR data of K university hospital. The author proposed tree-form patients' characteristic diagram through statistical methods that association rule, proportion test, clustering using prescription information and questionnaire information. Results: This study's analysis process was applied high blood data and diabetes data. Analysis showed other characteristic of meaningful patient groups in high blood and diabetes. In high blood, test implementation rate of patient group showed the differences. And in diabetes, test implementation rate of patient group and implemented test list showed differences. Conclusion: The result of this study can play a role as basic data that can be clinical testing standard in preventive aspect. Eventually, 5 dimensions of SERVQUAL will be improved by this study's process.

• 산경연구논집
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• 제10권9호
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• pp.37-43
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• 2019

이 논문은 즉석섭취식품으로 분류되는 김밥용 김에 관한 자가품질검사의 개선안을 제시하였다. 김밥용 김에 적용하는 검사항목 중 장염비브리오균은 3가지 측면에서 적합하지 않다. 첫째, 선행연구 가운데 김밥용 김에서 장염비브리오균을 발견한 사례가 전무하다. 둘째, 전수조사 성격의 자가품질검사 부정합 내역(2015~16년)에 김밥용 김이 적시된 적이 없다. 셋째, 국제기준인 CODEX 규정은 해조류에 장염비브리오균 검사 의무를 부여하지 않는다. 끝으로, 수출용 김과 조미김 및 기타 수산물가공품 유형에 해당 검사가 면제된다. 이에 따라 김밥용 김에 대한 장염비브리오균 검사의무의 면제는 타당하며 그에 따른 경제적 이득은, 특히 영세업체에 클 것으로 추정된다. 2018년 3월 중 총 75곳의 자가품질 검사기관에 대한 전화 및 서류조사 결과 업체당 수수료 절약 규모는 업체당 연평균 13만 원에 이를 것으로 산출하였다. 또한, 검사의 투명성과 효율을 제고하기 위해서는 검사기관 간 수수료의 조화가 필요할 것으로 판명되었다.

• The Journal of Asian Finance, Economics and Business
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• 제8권2호
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• pp.123-133
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• 2021

The purpose of this study was to analyze the influence of product quality factors, product risk, company reputation, and service quality on the purchase intention of insurance policies by customers in Indonesia. The variables in this study are product quality, service quality, company reputation, perceived risk, and purchase intention. This study uses a quantitative approach. Primary data were obtained from 154 respondents. Data processing and model testing use the Structural Equation Modeling procedure with Lisrel 8.80. At the significance level of 0.05, the research found that product quality had a positive and significant effect on purchase intention; product quality had a positive and significant effect on company reputation; product quality had a positive and significant effect on perceived risk perception; company reputation had a positive and significant effect on purchase intention; company reputation has a positive and insignificant effect on service quality; product quality has a positive, but non-significant effect on service quality; service quality has a positive and significant effect on purchase intention; perceived risk has a negative and significant effect on purchase intention; perceived risk has a positive and significant impact on service quality; and perceived risk has a positive and significant effect on company reputation.

• International Journal of Advanced Culture Technology
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• 제11권2호
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• pp.345-357
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• 2023

This research investigates the relationship between the information quality, service quality, and system quality of lodging apps and the users' expectations, level of satisfaction, and intent to continue using them. For this objective, 418 respondents participated in a survey. To evaluate the hypotheses, the collected data were examined using SPSS 22.0 and AMOS 22.0 statistical software. This study constructed a model using information quality, service quality, system quality, expectancy, satisfaction, and intention to continue using the pre- and post-use relationship of users of accommodation applications. The results of testing the hypotheses indicated that system quality had no significant effect on expectancy, system quality and service quality had no significant effect on satisfaction, and all other hypotheses had significant effects. The conclusion of this research is that the app's system quality, including access speed, access barriers, and privacy, does not satisfy pre- and post-use expectations. In addition, the system quality and service quality of the application have little effect on the app's satisfaction. The information quality of the application has a considerable impact on expectation confirmation and satisfaction, expectation confirmation has an impact on satisfaction, and expectation confirmation and satisfaction have an impact on intention to continue using.

• Geomechanics and Engineering
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• 제34권3호
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• pp.317-328
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• 2023

The soil behaviour can be represented by numerical modelling of element testing using diverse constitutive models. However, not all constitutive models allow the simulation of the stress-strain response at the critical state in granular soils with both contractive and dilative behaviour. Moreover, the accuracy of these models depends highly on the quality of the experimental data used for their calibration. This study addresses the modelling of the critical state behaviour of an alluvial natural soil from the Lower Tagus Valley (south of Portugal), known as TP-Lisbon sand, using the NorSand constitutive law. For this purpose, a series of numerical simulations of element testing was carried out using two algorithms performed in Visual Basic (VB) and Fast Lagrangian Analysis of Continua (FLAC). Moreover, this study presents the characterisation of of NorSand parameters from an accurate experimental programme based on triaxial and bender element testing. This experimental program allowed defining: (i) the critical state locus, (ii) the stress-dilatancy, and (iii) the soil elasticity of TP-Lisbon sand -all fundamental to calibrate the contractive and dilative behaviour of such alluvial soil. The results revealed a good agreement between experimental data and NorSand simulations using VB and FLAC. Therefore, this study showed that the quality of laboratory testing procedures and its good interpretation enables NorSand constitutive law to capture representatively the non-associated plastic strains, often expressed by the state parameter, allowing a representation of soil behaviour of alluvial soils within the critical state soil mechanics framework for different state parameters.

• 한국물환경학회지
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• 제20권6호
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• pp.685-691
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• 2004

Water quality forecasting with long term flow is important for management and operation of river environment. However, it is difficult to set up and operate a physical model for water quality forecasting due to large uncertainty in the data required for model setting. Therefore, relatively simpler stochastic approaches are adopted for this problem. In this study we try several multivariate time series models such as ARMAX models for the possible substitute for water quality forecasting. Those models are applied to the BOD and COD levels at Noryangin station, Han river, and also evaluated the effect of release from Paldang dam on them. Monthly BOD and COD data from 1985 to 1991 (7 years) are used for model building and another two year data for model testing. As a result of the study, the effect of improvement on water quality is much more effective combining with the water quality improvement of dam release than considering only increment of dam release in the downstream Han river.

• 품질경영학회지
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• 제43권1호
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• pp.43-56
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• 2015

Purpose: In this research, We made the conceptual frameworks for SEM(Structural Equation Modeling) on Global quality's origin and empirical research. Developing conceptual frameworks is an important step in theory building and theory testing. This research model was developed by strong theoretical foundation which is quality and systematical model. Methods: Questionnaire was developed, and data was collected and analyzed for this study. The analysis was conducted using SEM(Structural Equation Modeling). Results: Results show that process quality and interaction quality are important drivers in customer satisfaction. Customer satisfaction is strongly impact on customer loyalty(repeated purchase). Conclusion: In turbulent business era, Global company require not only excellent quality but also create customer oriented culture and control over operation in the foreign country.