• Proceedings of the Safety Management and Science Conference
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• 2001.05a
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• pp.93-99
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• 2001

통합신뢰성(Denpendability)은 시스템이나 제품의 가용성 성능(availability performance)을 나타내는 종합적인 용어이고, 가용성 성능은 신뢰성, 보전성, 보전지원(maintenance support) 성능에 의해 영향을 받는다. 통합신뢰성관리는 IEC 60300-1［1］에 정의되어 있고, 통합신뢰성 프로그램 요소와 업무는 IEC 60300-2［2］에 규정되어 있다. 또한 IEC 60300-3-6［3］은 소프트웨어를 포함하는 시스템이나 제품의 총합신뢰성 프로그램에 관하여 설명하고 있다. 이 연구에서는 많은 소프트웨어 표준의 기본을 이루는 소프트웨어 수명주기공정에 관하여 소프트웨어 통합신뢰성을 달성하기 위한 지침을 제공하고자 한다.

• Journal of Applied Reliability
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• v.6 no.4
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• pp.285-296
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• 2006

• KSCE Journal of Civil and Environmental Engineering Research
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• v.13 no.2
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• pp.51-59
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• 1993

This paper develops practical and realistic reliability models and methods for the evaluation of system-reliability and system reliability-based rating of various types of box-girder bridge superstructures. The strength limit state model for box-girder bridges suggested in the paper are based on not only the basic flexural strength but also the strength interaction equations which simultaneously take into account flexure, shear and torsion. And the system reliability problem of box-girder superstructure is formulated as parallel-series models obtained from the FMA(Failure Mode Approach) based on major failure mechanisms or critical failure states of each girder. In the paper, an improved IST(Importance Sampling Technique) simulation algorithm is used for the system reliability analysis of the proposed models. This paper proposes a practical but rational approach for the evaluation of capacity rating in terms of the equivalent system-capacity rating corresponding to the estimated system-reliability index which is derived based on the concept of the equivalent FOSM(First Order Second Moment) form of system reliability index. The results of the reliability evaluation and rating of existing bridges indicate that the reserved reliability and capacity rating at system level are significantly different from those of element reliability or conventional methods especially in the case of highly redundant box-girder bridges.

• Proceedings of the Korean Reliability Society Conference
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• 2001.06a
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• pp.271-272
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• 2001

제조물의 안정성과 신뢰성에 대한 사후대책인 제조물배상책임보험, 제조물회수비용보험, 제품하자보증책임보험, 신뢰성보험에 대하여 그 의의와 부보범위 등을 알아본다. 또한 신뢰성보험의 도입과 더불어 제조물배상책임보험을 활성화함으로서 부품 및 소재의 안전성과 신뢰성을 제고할 수 있음을 검토한다.

• The Journal of Korean Institute of Next Generation Computing
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• v.14 no.6
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• pp.44-56
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• 2018

Researches on military weapons are actively studied to improve national defense power of each country. The military weapon system is being used not only as a weapon but also as a reconnaissance and surveillance device for places where it is difficult for people to access. If such a weapon system becomes an object of attack, military data that is important to national security can be leaked. Furthermore, if a device is taken, it can be used as a terrorist tool to threaten its own country. So, security of military devices is necessarily required. In order to enhance the security of a weapon system such as drone, it is necessary to form a chain of trust(CoT) that gives trustworthiness to the overall process of the system from the power on until application is executed. In this paper, by analyzing the trusted computing-based boot technology, we derive trusted boot technology components and classify them based on hardware dependence/independence. We expect our classification of hardware dependence/independence to be applied to the trusted boot technology of our self-development ultraprecision weapon system to improve the defense capability in our military.

• Review of KIISC
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• v.19 no.6
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• pp.15-21
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• 2009

유비쿼터스 환경으로 네트워크 환경이 진화함에 따라 다양한 기기가 정보제공의 주체로 등장하고, 이에 따른 정보보호의 중요성이 증대되고 네트워크에 참여하는 기기에 대한 신뢰된 인증체계의 필요성이 요구되고 있다. 현행 사람 중심의 공인인증체계의 안전 신뢰성에 준하는 기기인증을 위해 추진되고 있는 기기인증체계 구축현황을 소개한다.

• KIPS Transactions on Software and Data Engineering
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• v.8 no.7
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• pp.265-274
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• 2019

The reliability test performed when developing the weapon system software is classified into static test and dynamic test. In static test, checking the coding rules, vulnerabilities and source code metric are performed without executing the software. In dynamic test, its functions are verified by executing the actual software based on requirements and the code coverage is measured. The purpose of this static/dynamic test is to find out defects that exist in the software. However, there still exist defects that can't be detected only by the current reliability test on the weapon system software. In this paper, whether defects that may occur in the software can be detected by static test and dynamic test of the current reliability test on the weapon system is analyzed through experiments. As a result, we provide guidance on improving the reliability test of weapon system software, especially the dynamic test.

• Proceedings of the Korean Vacuum Society Conference
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• 2010.08a
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• pp.31-31
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• 2010

국가표준기본법에 명시되어 있는 3대 표준분야는 측정표준, 성문표준, 참조표준이다. 특히, 참조표준은 엄밀한 평가 과정을 거쳐 그 신뢰성이 보장된 수치 데이터를 의미한다. 데이터의 신뢰성을 보장하기 위해서는 데이터의 평가기준 수립, 평가기준에 의거한 데이터 평가 과정을 거쳐야 한다. 이러한 체계를 갖추기 위하여 국가참조표준센터가 2006년에 설립되었으며 2010년 현재 17개의 데이터센터가 지정되어 각 담당 분야별로 참조표준을 확립하기 위한 작업을 수행하고 있다. 본 발표에서는 참조표준의 개념, 체계 그리고 현황에 대해 알아보고자 한다.

• Journal of the Korea Society of Computer and Information
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• v.27 no.12
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• pp.151-159
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• 2022

In this paper, we propose the standardization architecture and weapon-sensor simulator for efficient reliability test in combat system. To reduce man-month of reliability test, application with high dependency on other module is selected and apply FORM. The proposed standardization architecture extracts common, variable elements and design patterns, S.O.L.I.D principles were applied. The proposed weapon-sensor simulator implements essential functions by identifying highly dependent element of other modules and the information from equipment can be directly received without processing by using communication middleware. As a result, it can replace actual ship-mounted equipment. In addition, it is possible to reduce the consumption rate of human resources when perform reliability test and modification time can be shorted.

• Proceedings of the Korean Reliability Society Conference
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• 2001.06a
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• pp.513-520
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• 2001

신규개발장비에 대하여 사용자가 제시한 RAM-D 요구조건을 만족하기 위한 하부 체계의 RAM-D 설계목표 설정 절차 및 방법에 대하여 기동무기체계의 대표적 장비인 전차를 대상으로 연구하여 RAM-D 요소별 할당 모델을 개발하였다.