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최규식,김종기,장윤승 한국정보기술응용학회 2001 한국정보기술응용학회학술대회 Vol.2001 No.1
본 논문에서는 소프트웨어의 신뢰도에 대한 정의를 하고, 테스트 시간의 경과와 신뢰도와의 관계, 결함 수정 후 경과되는 시간과 신뢰도와의 관계를 연구한다. 소프트웨어의 비용을 고찰함에 있어서 조건별로 검토하여 비용이 최소로 되는 발행시각을 결정한다. 목표신뢰도 입장에서 발행시각을 결정함에 있어서 개발 후 테스트를 시작하기 전의 신뢰도의 조건에 따른 최적발행시각을 정한다.
불완전 디버깅을 고려한 개발 소프트웨어의 최적 인도 시기 결정 방법에 관한 연구
최규식 대한전기학회 2005 전기학회논문지 D Vol.54 No.6(D)
The software reliability growth model(SRGM) has been developed in order to evaluate such measures as remaining fault number, fault rate, and reliability for the developing stage software. Most of the study literatures assumed that this detecting efficiency was perfect. However the actual fault detecting is generally imperfect, and widely known to many persons. It is not easy to develop and remove the fault existing in the software because the fault finding is difficult, and the exact solving method also not easy, and new fault may be introduced depending on the tester's capability. There, the fault removing efficiency influences the software reliability growth or developing cost of software. It is a very useful measure throughout the developing stage, much helpful for the developer to evauate the debugging efficiency, and evaluate additional workload. Hence, the study for the imperfect debugging is important in point of software reliability and cost.This paper proposes that the fault debugging is imperfect and new fault may be introduced for the developing software during the developing stage.
An Active Output Filter with a Novel Control Strategy for Passive Output Filter Reduction
최규식,조보형 전력전자학회 2016 JOURNAL OF POWER ELECTRONICS Vol.16 No.3
This paper presents a novel control strategy for passive output filter reduction using an active output filter. The proposed method achieves the dual-function of regulating the output voltage ripple and output voltage variation during load transients. The novel control strategy allows traditional simple voltage controllers to be used, without requiring the expensive current sensors and complex controllers used in conventional approaches. The proposed method is verified with results from a 125-W forward converter.