• Journal of Information Technology Applications and Management
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• 제15권1호
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• pp.203-224
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• 2008

The purpose of this study is to investigate the evaluation perspectives of IT business value and empirically analyze the differences of evaluation perspectives between ex ante evaluation and post implementation evaluation, and among various information system types. 4 evaluation perspectives which have been used in the previous studies and in the field of industry practices are financial, customer, internal process, and growth, which are based on the BSC model. Data of 98 information systems have been collected from 89 companies including manufacturers, banks, insurances, and stock trading companies. As results of multi-way MANOVA test, 3 out of 8 hypothesis have been accepted statistically. While the order of importance of 4 perspectives in ex ante evaluation is customer, financial, internal process, and growth, the order of post implementation evaluation appears to be much different : that is, internal process, customer, financial, and growth. These findings provide insights for both IT practitioners and researchers.

• 대한전기학회논문지:전력기술부문A
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• 제52권1호
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• pp.9-16
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• 2003

In this paper, we propose a reliability evaluation method considering the momentary interruptions of power distribution systems. The results of research are concentrated on two parts. One is the analytic and probabilistic reliability evaluation of power distribution system considering the momentary interruptions and the other is the reliability cost evaluation that unifies the cost of sustained and momentary interruptions. This proposed reliability cost evaluation methodology is also divided into the analytic and probabilistic approach and the time sequential Monte Carlo method is used for the probabilistic method. The proposed methods are tested using the modified RBTS (Roy Billinton Test System) form and historical reliability data of KEPCO (Korea Electric Power Corporation) system. Through the case studies, it is verified that the proposed reliability evaluation and its cost/worth assessment methodologies can be applied to the actual reliability studies.

• 한국건축시공학회:학술대회논문집
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• 한국건축시공학회 2017년도 추계 학술논문 발표대회
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• pp.143-144
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• 2017

Due to the recent depletion of natural resources and global warming, a passive house type building exterior system has been developed and applied. For this purpose, we developed a building exterior thermal resistance performance evaluation system and verify the feasibility of this system for evaluation of passive house building system.

• 동굴
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• 제80호
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• pp.11-19
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• 2007

Most studies in the past in testing and benchmarking on Intrusion Detection System (IDS) were conducted as comparisons, rather than evaluation, on different IDSs. This paper presents the evaluation of the performance of one of the open source IDS, snort, in an inexpensive high availability system configuration. Redundancy and fault tolerance technology are used in deploying such IDS, because of the possible attacks that can make snort exhaust resources, degrade in performance and even crash. Several test data are used in such environment and yielded different results. CPU speed, Disk usage, memory utilization and other resources of the IDS host are also monitored. Test results with the proposed system configuration environment shows much better system availability and reliability, especially on security systems.

• 연구논문집
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• 통권33호
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• pp.111-122
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• 2003

The automatic assembly system of micro optical filter is a key technology in the development of optical modules with high functionality. In order to create such automatic assembly system of optical filter, we have developed the system and program capable of evaluation of $30\mum$-thick film optical filter as well as conventional optical filters performances. Moreover, we have carried out the evaluation of optical filter using developed system and program, and we have compared and analyzed them with by conventional hand work. As results, the measured performances based on the present system are more fast, precise and reliable then those of the conventional hand work. In addition to that, the system can apply for various optical collimators and filters.

• 대한안전경영과학회지
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• 제23권1호
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• pp.71-79
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• 2021

The railroad facilities are intended for long-term operation as the initial acquisition costs necessary for infrastructure construction are high. Therefore, regular maintenance of railroad facilities is essential, and furthermore, system reliability through systematic performance evaluation is required. In this study, the signal control system of railroad electrical equipment was selected as the subject of research and the performance evaluation target facility selection study was conducted using AHP. The results of the study can contribute to the reliability of the signal control system as well as to the reliability of the railroad system, which is a higher system.

• 한국정보통신학회논문지
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• 제17권4호
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• pp.1020-1027
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• 2013

오늘날, 기능성게임 시장의 많은 부분을 교육용기능성게임이 차지하고 있지만 교육용기능성게임에 대한 유용한 품질평가 정보를 사용자 또는 개발자에게 제공하기 위한 품질평가 시스템은 부족한 실정이다. 비록 기능성게임을 위한 기존의 메타데이터 관리 시스템이 개발되어 있지만 기존 시스템은 교육용기능성게임의 품질평가 정보를 관리 할 수 있는 기능은 제공되지 않고 있다. 따라서 교육용기능성게임의 품질평가 관리시스템의 개발은 매우 중요한 과제이다. 우리는 교육기능성게임에 대한 메타데이터 및 품질평가를 모두 관리하기 위한 시스템의 설계를 제안하였다. 본 시스템의 장점은 일반사용자와 개발자에게는 신뢰할 수 있는 유용한 정보를 제공하고, 시스템 관리자에게 메타데이터와 품질정보를 쉽고 편리하게 관리할 수 있는 수단을 지원하는 것이다.

• 한국정밀공학회지
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• 제15권6호
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• pp.64-78
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• 1998

In this paper, on the basis of factory rationalization, the detection and evaluation system of weak assembly process was developed to analyze the processes for improvement of assembly productivity in the current assembly system. Using this detection and evaluation system of weak assembly process, the weak degrees of assembly process were quantitatively calculated. In this system, the improved design rules were constructed for assemblability and the redesign alternative was Presented for elimination of weak Process. After review of the redesign alternative, it was applied to the actual assembly system.

• 경영과학
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• 제15권1호
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• pp.97-115
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• 1998

This study aims to develop the methodology based on the AHP(Analytic Hierarchy Process) of evaluation for commercial paper. commercial paper is the ma product of merchant banks. commercial paper evaluation is annually performed by the credit-evaluation agency. Credit evaluation is performed by the informal judgemental system, which has potential to induce serious inconsistencies in decision-making. We present an objective scoring model which does not suffer from the weakness of the subjective judgement system. The model used is illustrated by analyzing the commercial paper evaluation for the 3 motor-companies(H, K and S motors).

• International Journal of Quality Innovation
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• 제1권1호
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• pp.75-80
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• 2000

Objective evaluation is necessary for the company to know the level of its TQM activity and to improve it. This article proposes self-evaluation model for TQM activity through comparison study of the examination viewpoints for the Deming Prize with criteria of the Malcolm Baldridge National Quality Award. Proposed self-valuation model consists of three evaluation categories i.e. management system, management performance and survey/audit system. Evaluation on these categories is done for process and performance by using scoring method. This self-evaluation model is useful for checking the progress of TQM and make company recognize the strength and weakness of its TQM activity, namely, positioning analysis.