• 산업공학
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• 제22권3호
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• pp.192-204
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• 2009

Based on the characteristics of 'Korean electric power industry R&D programs', this study proposes a new performance evaluation framework where electric power industry related R&D projects are scrutinized. The abovementioned R&D programs have their own goals and especially they emphasize the effectiveness as well as the efficiency of each subordinate R&D project. Hence, in this framework, a performance evaluation procedure is established and then a mathematical model is developed according to the procedure. The model calculates performance evaluation indices for a set of R&D projects integrating the effectiveness with the efficiency of each R&D project. In a case study with an empirical dataset, statistical significance is tested on the integrated performance evaluation indices of R&D projects regarding organizational types and program categories considered.

• 한국지진공학회논문집
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• 제26권5호
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• pp.211-217
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• 2022

New buildings have been designed using different seismic design standards that have been revised. However, the seismic performance of existing buildings is evaluated through the same performance evaluation guidelines. Existing buildings may not satisfy the performance targets suggested in the current guidelines, but there are practical limitations to discriminating the existing buildings with poor seismic performance through a full investigation. In this regard, to classify buildings with poor seismic performance according to the applied standard, this study aimed to evaluate performance-based investigation of the seismic design proposals of buildings with different design standards. The target buildings were set as RC ordinary moment frames for office occupancy. Changes in seismic design criteria by period were analyzed, and the design spectrum changes of reinforced concrete ordinary moment resisting frames were compared to analyze the seismic load acting on the building during design. The seismic design plan was derived through structural analysis of the target model, compared the member force and cross-sectional performance, and a preliminary evaluation of the seismic performance was performed to analyze the performance level through DCR. As a result of the seismic performance analysis through the derived design, the reinforced concrete ordinary moment frame design based on AIK 2000 has an insufficient seismic performance level, so buildings built before 2005 are likely to need seismic reinforcement.

• 한국CDE학회논문집
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• 제20권1호
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• pp.11-21
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• 2015

Currently, the United States, the United Kingdom, Australia etc. are actively utilizing energy simulation for efficiency evaluation of building energy. However, domestic energy efficiency assessment system doesn't use energy simulation system properly at present: parameters based architecture plans and Ashrae Standard are inputted for the evaluation, because the input parameters for the simulation haven't been established yet. This fact causes poor reliability during energy simulation, as the values of the two standards are different from each other. Therefore, the aim of the study is to set domestic standard parameter for BIM-based energy performance evaluation, focusing on possession area per person of occupants at government office in Korea. We found that the difference among the result values occurred approximately 3% in the energy simulation. As a result of the analysis, possession area per person of occupants in Government office is $31.87m^2$. Other input parameters may be set based on this. This will increase the reliability of energy simulation through a domestic standard parameter.

• KIEE International Transactions on Power Engineering
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• 제2A권4호
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• pp.160-165
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• 2002

This paper describes a proposed performance criteria and evaluation procedures for transmission system planning in Korea. Performance criteria of the transmission system are expected to be used as a guideline for investment into a transmission network. Moreover, performance evaluation procedures, which are based on current practices and widely accepted theories, are suggested to achieve fair and acceptable results.

• 설비공학논문집
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• 제20권3호
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• pp.155-166
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• 2008

The performance evaluation of a new building is becoming more important because efficient design alone is often not sufficient to deliver an efficient building. However, there is a lack of standard evaluation methods to measure the energy performance of a new construction that has Energy Conservation Design Measures(ECDMs). This study presents an enhanced method based on calibrated whole-building simulation for evaluating the energy performance of new commercial buildings and demonstrates its use using a case-study building, including: an Energy Use Index(EUI) comparison with sub-metered data and an evaluation of the performance of specific ECDMs. The use of this method has determined that the case-study building was shown to use approximately 47% less energy than the base-case building that has the same shape and function as the case-study building(i.e., calibrated as-built simulation mode]), but doesn't include the simulated ECDMs.

• 대한산업공학회지
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• 제29권1호
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• pp.100-113
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• 2003

In order to improve business competency by the IS(Information Systems), every enterprise needs to evaluate the current level of IS performance and their utilization. The evaluation that measures the performance of enterprise information systems and diagnoses their effectiveness of business goals and efficiency of resources should represent the useful informations based on sustainable goal-oriented viewpoints to managers. This work develops an integrated evaluation system for continuous maturity of information systems performance, enabling enterprises to achieve their goals of information systems and related business strategies. The integrated evaluation system has been applied to performance measurement of information systems with a huge set of real data from domestic industries for three years, and proven reliable and practical.

• 한국컴퓨터정보학회논문지
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• 제13권7호
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• pp.19-27
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• 2008

컴퓨팅 자원 사용에 제약이 많은 임베디드 소프트웨어 개발에 있어서 성능 분석 도구는 품질 개선을 위해 매우 중요한 역할을 한다. 그러나 기존 임베디드 소프트웨어 성능 분석 도구들은 단일 개발자의 교차개발 지원을 위한 성능분석 환경만을 제공하기 때문에 임베디드 소프트웨어를 위한 협업 성능분석 도구로서 활용될 수 없다. 본 논문에서는 협업 환경에서 임베디드 소프트웨어 성능 분석을 효과적으로 수행하기 위한 서버 기반의 새로운 성능 분석도구를 제안한다. 제안하는 성능분석 도구는 개발 소프트웨어에 대해 실행한 성능 분석로그를 협업 개발자들 기호에 맞는 다양한 그래픽 뷰로 생성하여 개발자간의 신속하고 효율적인 정보 공유를 가능하게 함으로써 프로그램의 성능 향상을 위한 개발자의 성능 분석 환경을 크게 개선할 수 있다.

• 한국구조물진단유지관리공학회 논문집
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• 제18권6호
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• pp.114-122
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• 2014

현재 전 세계적으로 석탄, 석유 등 화석연료의 사용으로 지구 온난화가 진행되고 있다. 이러한 원인으로 폭염, 폭설, 폭우 및 슈퍼태풍 등과 같은 이상기후, 극한기후 현상이 지속적으로 증가 하고 있다. 또한 심각한 자연재해로 콘크리트 구조물 및 사회기반시설의 심각한 손상과 붕괴가 발생한다. 이러한 문제들을 해결하기 위해서는 기후변화에 적합한 기준 및 시공 기술 등이 필요한 실정이므로 본 연구에서는 다양한 온도와 습도 양생조건이 콘크리트 배합에 미치는 영향을 검토해 보았다. 다양한 온도와 습도 조건에서 양생된 콘크리트의 압축강도와 할렬인장강도 실험을 수행하였다. 또한 성능중심평가 (performance based evaluation (PBE))방법을 사용하여 다양한 양생조건에서 경화된 콘크리트 강도의 만족도확률을 평가하였다. 또한 콘크리트의 성능중심평가로부터 얻는 결과 값을 바탕으로 기후변화가 배합에 미치는 영향을 고려하여 배합설계에 적용할 수 있다.

• Journal of Information Technology Applications and Management
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• 제19권2호
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• pp.59-78
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• 2012

The purpose of this longitudinal case study is to shed light on the reliability problems of IS performance evaluation by analyzing the discrepancy between ex ante evaluation in 2011 and ex post evaluation in 2012. Through an information system development project of a public enterprise, the gap between ex ante and ex post evaluation was ascertained and the causes as to why such gap occurs and the success factors that can solve the problems were derived. The ex ante evaluation of IS performance was performed based on both IS success model and BSC model and the ex post evaluation was carried out at the time after the target system has been built up by applying the evaluation measures and process that are similar to the ex ante evaluation. In the ex ante evaluation the business performance improved by the target system was estimated to 18.2%. On the other hand, it was seen as being low at 15.2% in the ex post evaluation and the differences were found to be statistically significant in 6 out of 10 measures. The reasons as to why such gap occurs were diagnosed as being of 2 types : (1) changes in the evaluation psychology according to the differences in the evaluation objectives; and (2) excessive expectation levels of the target system that is formed at the time of the ex ante evaluation. In other words, the users who have excessive expectations tend to overestimate in the ex ante evaluation and, in the ex post evaluation, tend to underestimate lower than the actual performance mainly due to disappointment on the results that do not meet the early expectations. As solutions to overcome the reliability problem of ex ante evaluation, 3 factors were derived : (1) the temperance of excessive expectation levels of the users; (2) a clear definition of the scope and functionality of the target system; and (3) actual commitments for the evaluations of IT performance.

• 정보교육학회논문지
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• 제9권3호
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• pp.549-560
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• 2005

웹기반 원격연수는 연수자가 교육현장에서 문제해결학습을 통해 주도적으로 문제해결을 수행하도록 구체적이며 실천적인 가능성을 높이는데 중점을 두어야 한다. 수행평가는 교육목표가 실제상황에서 달성되었는지의 여부를 확인하는 것으로 교육문제 해결의 실천적 수행학습을 통해 평가된다. 따라서 본 연구는 초등교원의 원격연수에 대한 인식도 평가결과인 수행평가의 공정성 및 객관성 문제와 원격 연수의 효율적인 평가방법을 반영하고 수행평가결과 처리에 대한 교수자의 과중한 업무 부담을 해소하고 문제수행능력을 신장하는 원격연수 수행평가 방안을 제시하였다. 본 연구 결과 문제중심의 학습 상황 제공, 그리고 개인 및 그룹별 상호작용 생성과 웹 기반 협동평가 및 동료평가를 통한 문제중심 수행평가를 제공하는 모형을 개발하였다.