• 한국치위생학회지
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• 제15권1호
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• pp.31-38
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• 2015

Objectives: The purpose of this study is to investigate the factors of oral health beliefs on scaling performance by national health insurance coverage in consumers. Methods: The subjects were 353 people living in Seoul, Incheon, and Gyeonggi-do from September 25 to October 20, 2013. They filled out the self-reported questionnaire after receiving informed consents. The questionnaire included 6 questions of general characteristics, 6 questions of oral health behavior, 6 questions of health insurance coverage, and 1 question of subjective oral health recognition. The oral health belief consisted of 6 questions of seriousness, 6 questions of susceptibility, 8 questions of barriers, 5 questions of benefit, and 3 questions of self-efficacy measure by Likert 5 scale. Cronbach's alpha in the study was 0.759. Data were analyzed using SPSS version 20.0 for frequency analysis, t-test, ANOVA, post-hoc Scheffe test, Pearson's correlation coefficient, and binary logistic regression. Results: The influencing factors of oral health belief model were Seriousness(${\beta}=0.091$), Self efficacy(${\beta}=-0.471$) and age(${\beta}=0.855$)(p<0.05). Those who had highly perceived seriousness and younger age tended to have probability of scaling performance. Higher self-efficacy tended to take more chance to have scaling performance probability. Conclusions: In order to cover the scaling by national health insurance, it is very important to notice the benefit of health insurance coverage of scaling to the consumers. National health insurance coverage enables the scaling practice to be easily accessible to the people. Easy access to scaling by low cost strategy can improve the oral health behavior.

• 한국컴퓨터정보학회논문지
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• 제12권6호
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• pp.89-96
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• 2007

유한고장수를 가진 비동질적인 포아송 과정에 기초한 모형들에서 잔존 오류 1개당 고장 발생률은 일반적으로 상수, 혹은 단조증가 및 단조 감소 추세를 가지고 있다. 소프트웨어 제품의 정확한 인도시기를 예측하거나 효용성 및 신뢰성을 예측하기 위해서는 소프트웨어 테스팅 과정에서 중요한 요소인 테스트 커버리지를 이용하면 보다 효율적인 테스팅 작업을 할 수 있다. 본 논문에서는 기존의 소프트웨어 신뢰성 모형인 지수 커버리지 모형과 S-커버리지 모형을 적용하고 이 분야에 적용 될 수 있는 변형 커버리지 모형(중첩모형 및 혼합모형) 비교 문제를 제안하였다. 고장 간격시간으로 구성된 자료를 이용한 모수추정 방법은 최우추정법과 수치해석 방법인 이분법을 사용하여 모수 추정을 실시하고 효율적인 모형 선택은 편차자승합(SSE)을 이용하였다.

• 융합보안논문지
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• 제7권3호
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• pp.7-13
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• 2007

유한고장수를 가진 비동질적인 포아송 과정에 기초한 모형들에서 잔존 오류 1개당 고장 발생률은 일반적으로 상수, 혹은 단조증가 및 단조 감소 추세를 가지고 있다. 소프트웨어 제품의 정확한 인도시기를 예측하거나 효용성 및 신뢰성을 예측하기 위해서는 소프트웨어 테스팅 과정에서 중요한 요소인 테스트 커버리지를 이용하면 보다 효율적인 테스팅 작업을 할 수 있다. 본 논문에서는 기존의 소프트웨어 신뢰성 모형인 지수 커버리지 모형과 S-커버리지 모형을 재조명하고 이 분야에 적용될수 있는 중첩모형을 제안하였다. 고장 간격시간으로 구성된 자료를 이용한 모수추정 방법은 최우추정법과 일반적인 수치해석 방법인 이분법을 사용하여 모수 추정을 실시하고 효율적인 모형 선택은 편차자승합(SSE)을 이용하였다.

• 보건행정학회지
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• 제18권2호
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• pp.1-18
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• 2008

As medical insurance had been implemented for Magnetic Resonance Imaging (MRI) from January 1, 2005, this study investigated whether there had been any change in the amount of the medical care utilization of patients who undertook MRI before and after the insurance coverage, and was to examine factors affecting the amount of medical care utilization of MRI. Data were collected from patients who undertook MRI before and after the insurance coverage for a year at a general hospital in Kyeanggi-do. $X^2$ and t-test were used for the analysis of their general characteristics, the number of MRI, and its medical costs before and after the insurance coverage, and hierarchical multiple regression analysis for the factors affecting the amount of the medical care utilization of MRI. The results of this study were as follows. First, the number of MRI after the insurance coverage was significantly decreased. Second, there was no significant difference in the total medical costs of MRI after the insurance coverage, but a significant difference was found in patient's share of medical costs. Third, six variables were found to be affecting the amount of the medical care utilization of MRI, and the variables showed to lead the number of MRI decrease after the insurance coverage. These six factors explained 21.4% of the total number of MRI. As MRI had been covered by insurance, the use of MRI and patient's share of the costs were deceased, but the total medical costs were not affected. Reasons for that could be found in that MRI insurance, different from the case of CT insurance coverage, was allowed not to cover some items and the kinds of diseases subjected to the insurance coverage were extremely limited, lowering insurance prescription rate. In addition to that, the average medical cost of MRI was not changed after the insurance coverage. Therefore, as future measures for the MRI insurance, coverage, it should be considered to allow insurance coverage to no coverage items and to expand the scope of benefit coverage, or to lower patient's share of the costs. Furthermore, researches should be done to explore how recipients will act and how suppliers will react if the coverage is expanded, including expanding the scope of coverage and reducing patient's share of the costs, as well as to conduct research on its economic analysis according to case mix.

• 대한전자공학회:학술대회논문집
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• 대한전자공학회 1999년도 하계종합학술대회 논문집
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• pp.397-400
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• 1999

As the result of enhancement of CAD, Design Automation and manufacturing technology, it's on the increasing complexity, integration ratio, data signals, and pin count to IC chips. This brings about difficulties of testing, and incresing test time. Now One of the most cost-consuming procedure as integration ratio increases is the testing step. In this paper, we propose a new method, “Efficient TP(test point) assignment algorithm” using “input grouping”, This is helpful method to reducing test length without losing fault coverage. Experimental results show that proposed method reduces test length remarkably and doesn't miss fault coverage, with low hardware overhead Increasing.

• Asian Pacific Journal of Cancer Prevention
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• 제15권20호
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• pp.8905-8910
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• 2014

Background: Coverage of cervical pap smear test in Nepal is below general global values. One of the reasons may be that cervical cancer prevention policy of Nepal has 'Visual Inspection of Cervix with Acetic Acid' as the only screening tool. The focus of present study was to find out association of demographic factors, knowledge and attitude regarding cervical Pap smear test with its practice by women in Nepal. Materials and Methods: This cross sectional analytical observational study was conducted between February 1, 2013 and April 30, 2013. Participants were interviewed with the help of a structured questionnaire. Chi square and multivariate logistic regression tests were used to detect associations of variables with pap smear practice. Results: Chi square test showed that practice was significantly associated with knowledge about pap smear test and cervical cancer, having favourable attitude towards the test, urban residency and 36-50 years age-group. Pap smear utilization was not associated with age-at-marriage, parity and age-at-first-child-birth. Multivariate logistic regression showed favorable attitude towards pap smear test as the only variable which significantly influenced pap smear practice (p= 0.006, OR: 2.4). Conclusions: Pap smear coverage has been found to be 15.7% which is lower than global average and that for developing countries. Health education programs which are effective not only in increasing knowledge about cervical cancer and pap smear test but also effective in positively changing attitude towards the test should be organized to increase pap smear coverage.

• 한국IT서비스학회지
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• 제14권2호
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• pp.129-142
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• 2015

The purpose of this study is to suggest an effective regression testing method in order to minimize the scope of test resulting from the modification of software and to prevent mismatch of test case and test objects. As a way to improve the efficiency of regression testing which uses a change-centric testing technique, the method flow is analyzed and grasped through a static analysis based on source code in order to identify modified parts. After the order of priority is set according to the results of user action log-based dynamic analysis on identified regression testing objects, test effect can be raised by adjusting the order of priority using code complexity. Quality assurance coverage can be checked using the user action log suggested in this study, and the progress of test and whether or not each function has been verified can be checked, too. In addition, by minimizing test parts and adjusting the order of test, costs and time can be saved, making it possible to conduct regression testing effectively.

• 한국통신학회논문지
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• 제21권8호
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• pp.1948-1957
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• 1996

통신 프로토콜의 적합성 시험은 구현된 프로토콜이 표준규격과 동일하게 구현되었는지를 검사하는 과정을 말한다. 생성된 시험 항목이 어느 정도의 오류를 발견해 낼 수 있는지를 평가함으로써 적합성 시험의 효율성을 평가하는 하나의 기준으로 사용될 수 있다. 시험 항목의 오류 발견 능력의 평가 방법은 주로 수학적 평가 방법과 시뮬레이션을 이용한 연구가 이루어져 왔다. 본 논문에서는 기존 평가 방법의 문제점을 지적하고 오류 모델을 사용하여 생성된 시험항목에 대한 새로운 오류 발견 평가 모델을 제시하였다. 그리고 제안된 평가 모델을 기존의 방법과 비교, 분석하여 타당성을 입증하였다.

• 한국컴퓨터정보학회논문지
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• 제24권4호
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• pp.107-112
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• 2019

Failure testing is a test that verifies that the system is operating in accordance with failure response requirements. A typical failure test approaches the operating system by identifying and testing system problems caused by unexpected errors during the operational phase. In this paper, we study how to evaluate these Failure at the software development stage. Evaluate the probability of failure due to code changes through the complexity and duplication of the code, and evaluate the probability of failure due to exceptional situations with bugs and test coverage extracted from static analysis. This paper studies the possibility of failure based on the code quality of software development stage.

• 한국정보전자통신기술학회논문지
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• 제10권4호
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• pp.325-332
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• 2017

본 논문은 프로토콜 구현물이 프로토콜의 사양에 대한 적합성을 시험하기 위한 시험항목 생성방법들에 대하여 비교분석 한다. 대표적인 방법들인 천이 순회, 구별 시퀀스, 특징화 시퀀스, 유일 입출력 시퀀스와 변형된 이들 방법들을 분석하고, 유한 상태 기계 모델에 적용한 위의 방법들의 시험항목 길이를 비교 및 분석 한다. 결론에서는 프로토콜 적합성시험을 위한 시험항목 생성방법들에 대한 핵심적이고 분석적인 이슈 사안들을 다음과 같이 제시한다. 천이 순회 방법은 최단의 시험 항목을 생성하지만 최악의 오류 검출 성능을 제공한다. 특징화 시퀀스 방법은 완벽한 오류 검출 성능을 제공하지만 상대적으로 최장의 시험 항목을 생성한다. 구별 시퀀스 방법의 문제점은 이 구별 시퀀스가 항상 존재하지는 않는다는 것이다. 유일 입출력 시퀀스 방법이 비교적 폭넓게 적용될 수 있지만 구별 시퀀스 방법과 동일한 오류 검출 성능을 제공하지 못한다는 문제점이 있다.