• Proceedings of the Korean Society of Computer Information Conference
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• 2015.07a
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• pp.305-308
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• 2015

건설공사 사후평가는 공공건설사업 수행성과를 평가하고 차후 유사사업 추진 시 이를 활용하여 공공건설사업 효율화에 기여하기 위한 제도이다. 국토교통부에서는 발주청별로 실시하고 있는 건설공사 사후평가의 결과정보를 체계적으로 통합 관리하고, 이를 활용할 수 있도록 건설공사 사후평가 시행지침을 기초로 한 건설공사 사후평가시스템을 구축하여 운영 중에 있다. 하지만 사후평가 시행지침의 개정에 따라 입력양식 및 관리항목이 변경되고, 축적된 사후평가 결과정보의 분석기능 등의 부족으로 유사 건설사업 수행시 활용 체계가 미흡한 실정이다. 본 연구에서는 건설공사 사후평가 시행지침의 개정과 분석 및 통계기능 강화를 위해 따라 건설공사 사후평가시스템의 개선방안을 제시하고자 한다. 이를 통해 사후평가시스템의 활용도를 제고하고 유사 공공건설사업 수행시 시행의 효율성을 도모할 수 있으리라 예상된다.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.36 no.6
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• pp.1145-1152
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• 2016

A construction post evaluation is introduced to provide information that can be used for similar construction projects in the future through the evaluation of the efficiency of a public construction project and the verification of the appropriateness of the project results. However, it is not widely used due to a lack of awareness of the method. For this reason, the aim of this study is to provide a basic frame that can be utilized as a reference for a similar project in the future based on the construction post evaluation. More specifically, a more effective analysis method for the construction post evaluation is proposed and then an exemplary analysis is performed based on the method. The paper analyzes 293 cases stored in construction CALS. Construction cost growth rates of railway projects are tend to be greater than other project types like highway, expressway, and harbour. Then, construction schedule grwoth rates of expressway are greater than others. This is expected to provide useful information for a future project, and serve as a basic frame. Moreover, it is also meaningful that a project can be analyzed from different perspectives through the construction post evaluation.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.31 no.2D
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• pp.315-322
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• 2011

The Korea government set a Act called as Before and After Study for a huge SOC projects in order to check their feasibility again at the time of design, construction and completion period. However, the evaluation items and analysis method are so vague that its effectiveness has been challenged. Especially railroad projects need to be evaluated differently by railroad construction types and rolling stocks. This paper suggests the evaluation items as a common items and exclusive items on the type of construction and rolling stocks. Also data collection in the standardized form and GIS techniques and are introduced to analyze evaluation items effectively.

• Korean Journal of Construction Engineering and Management
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• v.16 no.2
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• pp.77-85
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• 2015

The data are often missed and many errors of the data are generated in the input process for the post evaluation system on the construction projects, and the reliability of the data falls down much. Accordingly, the detailed analysis about missing and error of data was conducted to ensure reliability of the analysis results about post evaluation on the construction projects. As results in this study, a lot of input data were missed at the initial construction phase, and the data errors were found in the inaccuracy of reference reports, the lack of understanding about input data, and the failure of KRW unit.

• Journal of Energy Engineering
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• v.23 no.3
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• pp.58-65
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• 2014

The study examined the post-monitoring programs under the energy efficiency labeling program in developed countries. This study suggests a few solutions to improve the post-monitoring activities under the program. First, samples should be selected from each category for the post-monitoring activities, taking account of the consumer's continuous buying behavior. Second, it is necessary to check of detailed label contents and to perform the frequent monitoring the reinforcement of the measurement of items which have violated labeling more than once over the past few years. Last, this study suggests that the entire post-monitoring process should be disclosed and be posted on the websites on the internet in general.

• Proceedings of the Korean Society for Agricultural Machinery Conference
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• 2002.07a
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• pp.148-153
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• 2002

사후봉사의 핵심은 신속한 고장 수리와 원활한 부품 공급이다. 일정 지역을 담당하고 있는 사후봉사 업소가 보유해야 할 수리 부품에 대한 적정 재고량 산정은 사후봉사 업소의 안정적인 경영뿐만 아니라 원활한 사후봉사의 기능을 위해서도 대단히 중요한 일이다. (중략)

• Journal of the Korea Society of Computer and Information
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• v.27 no.12
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• pp.197-207
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• 2022

The Naval Combat System operates in multiple software components for efficient functional processing. Data transmission and reception between components is performed in real time using DDS(Data Distribution Service). Reliable Post-Analysis requires the collection of all DDS messages. However, Software workload and development costs increase because common functions for all messages must be developed directly. In the paper, We propose an improved Post-Analysis based on the Feature Model and a new development system using it. Functions for the modified message were applied as variable domains of the Feature Model. When Build Center updates Post-Analysis, it automatically processes all software tasks associated with Post-Analysis. The proposed development system simplified the overall work procedure, and work time was significantly reduced compared to the existing development system.

• Journal of Environmental Policy
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• v.11 no.3
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• pp.67-96
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• 2012

The Ministry of Environment in Korea has been promoting the urban stream restoration project for paved streams in cities as the restored Cheonggyecheon. As an elementary study for suggesting policy implications for the project, cost and benefit criteria for an ex-post analysis on the Cheonggyecheon project is suggested in this study. The ex-ante analysis were reviewed critically by focusing on the cost and benefit criteria. Ex-post analysis plan in this study is developed considering the standard guideline of pre-feasibility, the theory of cost-benefit analysis, and the review results. The costs for compensating lands, amending conflicts, researching rivers, and maintaining water quantity were also included. For the benefits, this study proposes to estimate the benefits with the assessment on naturalness of stream. The results are expected to contribute to increase the efficiency of the urban stream restoration project and evaluate the project to match better with the meaning of the river restoration.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.1
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• pp.156-163
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• 2012

The price stabilization policies which require the underwriters to maintain post-IPO prices at some level (stabilization duty) or give put-back options to investors, have survived for eight years until June, 2006. The purpose of this study is to analyze the effect of price stabilization policies upon IPO underpricing in KOSDAQ. The study decomposes the influence of the price stabilization policies on IPO underpricing into ex-ante and ex-post effect. The price stabilization policies have shown to increase the IPO underpricing both at ex-ante and ex post bases. And the ex-ante effect is greater than ex-post effect. Among policies, the price stabilization duty magnifies the underpricing more than put-back option. This study differentiate from the precedented studies by including the whole period in which those policies are in act and by decomposing the IPO underpricing effects into ex-ante and ex-post bases.

• The Korean Journal of Financial Studies
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• v.6 no.1
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• pp.249-267
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• 2000

본 연구에서는 한국의 주가지수옵션시장 내에서 KOSPI 200 옵션들 사이의 가격불균형을 이용한 박스 스프레드 차익거래 기회와 수익성에 대한 실증분석을 시행하였다. 분석기간 중 한국증권거래소 비회원사의 경우에는 전체 관측도수 중 11.1%의 경우에 박스 스프레드 차익거래 기회가 존재하였으며, 사후적 박스 스프레드 매도 차익거래 이익 평균은 0.3468, 사후적 박스 스프레드 매입 차익거래 이익 평균은 0.3462이었다. 한국증권거래소 회원사인 증권회사들에게는 박스 스프레드 차익거래 기회가 자주 발생하였다. 한국증권거래소 회원사의 경우에는 전체 관측도수 중 61.4%의 경우에 박스 스프레드 차익거래 기회가 존재하였으며, 사후적 박스 스프레드 매도 차익거래 이익 평균은 0.1677, 사후적 박스 스프레드 매입 차익거래 이익 평균은 0.1815이었다. 사전적 박스 스프레드 차익거래 수익성 분석 결과 박스 스프레드 차익거래 전략을 실행하는데 소요되는 시간을 고려하는 경우에도 증권거래소 회원사와 비회원사 모두에게 수익성 있는 박스 스프레드 차익거래 기회가 존재하였다.